{"id":13369,"date":"2023-01-17T14:06:57","date_gmt":"2023-01-17T11:06:57","guid":{"rendered":"https:\/\/flatlogic.com\/blog\/?p=13369"},"modified":"2023-02-01T02:47:05","modified_gmt":"2023-01-31T23:47:05","slug":"how-to-improve-the-performance-of-a-react-native-app","status":"publish","type":"post","link":"https:\/\/flatlogic.com\/blog\/how-to-improve-the-performance-of-a-react-native-app\/","title":{"rendered":"How to Improve the Performance of a React Native App?"},"content":{"rendered":"<p>Three interesting facts about <a href=\"https:\/\/flatlogic.com\/blog\/react-js-vs-react-native-what-are-the-key-differences-and-advantages\/\">React Native<\/a> for you to mull over:<\/p><ul class=\"wp-block-list\"><li><a  data-ilj-link-preview=\"true\"  data-featured-image=\"https:\/\/flatlogic.com\/blog\/wp-content\/uploads\/2018\/09\/rns-600x450.png\"  data-excerpt=\"There is an entire market of web templates both free and premium. You must already know about it from websites like ThemeForest and Wrapbootstrap. There are also lots of free templates available in Github built with various front-end frameworks like Angular, React and Vue. Since last few years, and especially after React Native launching, we&hellip;\" href=\"https:\/\/flatlogic.com\/blog\/react-native-mobile-bootstrap-web\/\">React Native<\/a> <a href=\"https:\/\/insights.stackoverflow.com\/survey\/2021\" target=\"_blank\" rel=\"noreferrer noopener\">ranks 6th<\/a> in the Stack Overflow Developer Survey 2021 with <a href=\"https:\/\/insights.stackoverflow.com\/survey\/2021\">14.51%<\/a> votes.&nbsp;<\/li><\/ul><figure class=\"wp-block-image\"><img decoding=\"async\" data-src=\"https:\/\/lh3.googleusercontent.com\/RzEG9Lt1WBYhVeoMIUYLQOHcjDgxQ9npHu0mN_zhKdl9djYQglluoWDQORz6bP2S2nt_YxwUHg6giwljpBDf7yZ7dsYFr9Nl50CkuWh5uZrqgjN142fKHeTF8O4lsNnIfw0T_3BxdXexCCtZ0yaKNjudi-KSSUrXC6pze1mwzOcT9Ku7OBWTihqmFAdIuJj6PzOsVldgGg\" alt=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" \/><\/figure><p><a href=\"https:\/\/insights.stackoverflow.com\/survey\/2021\" target=\"_blank\" rel=\"noreferrer noopener\">Source<\/a><\/p><ul class=\"wp-block-list\"><li>Giants such as Facebook, Skype, and SoundCloud Pulse chose the <a  data-ilj-link-preview=\"true\"  data-featured-image=\"https:\/\/flatlogic.com\/blog\/wp-content\/uploads\/2019\/09\/top-articles-copy-600x450.png\"  data-excerpt=\"Here is our list of JS articles of 2019. We collected 17 posts with tricks and tips in JavaScript and its frameworks.\" href=\"https:\/\/flatlogic.com\/blog\/17-articles-of-september-2019-to-learn-javascript\/\">React<\/a> Native framework to build their apps.<\/li><li><a href=\"https:\/\/www.stxnext.com\/blog\/why-use-react-native-your-mobile-app\/\" target=\"_blank\" rel=\"noreferrer noopener\">14.85%<\/a> of installed apps among the top 500 apps in the U.S. are built with the React Native framework.<\/li><\/ul><p>You&#8217;re convinced that the React Native framework is a big deal. However, before you go and <a href=\"https:\/\/www.uplers.com\/hire-react-native-developers\/\" target=\"_blank\" rel=\"noreferrer noopener\">hire a React Native developer to build your app<\/a>, read this article.&nbsp;&nbsp;<\/p><p>In the next five minutes, the article will discuss 7 <strong>ways to improve the performance of a React Native app<\/strong>. The comprehensive guide will discuss:<\/p><ul class=\"wp-block-list\"><li>How steering clear of ScrollView to render huge lists optimizes the performance of a React Native app<\/li><li>How steering clear of unnecessary renders optimizes the performance of a React Native app<\/li><li>How steering clear of passing functions inline as props optimizes the performance of a React Native app<\/li><li>How steering clear of arrow functions optimizes the performance of a React Native app<\/li><li>How steering clear of implementing bulk reducers optimizes the performance of a React Native app<\/li><li>And much more<\/li><\/ul><p>If you&#8217;re someone who is hiring React Native developers, you&#8217;ll know what to look for in them to make the best recruit. If you&#8217;re a React Native developer, you&#8217;ll know what to do to achieve <strong>React Native performance optimization<\/strong>.<\/p><p>Without further ado, let&#8217;s begin.&nbsp;&nbsp;<\/p><h1 class=\"wp-block-heading\">7 ways to improve the performance of a React Native app&nbsp;<\/h1> <a href=\"https:\/\/flatlogic.com\/generator\"><img decoding=\"async\" data-src=\"https:\/\/flatlogic.com\/blog\/wp-content\/uploads\/2025\/10\/Introducing-professional-vibe-coding.png\" alt=\"Professional Vibe Coding\" class=\"banner-img lazyload\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 2560px; --smush-placeholder-aspect-ratio: 2560\/640;\" data-srcset=\"https:\/\/flatlogic.com\/blog\/wp-content\/uploads\/2025\/10\/Introducing-professional-vibe-coding.png 2560w, https:\/\/flatlogic.com\/blog\/wp-content\/uploads\/2025\/10\/Introducing-professional-vibe-coding-600x150.png 600w, https:\/\/flatlogic.com\/blog\/wp-content\/uploads\/2025\/10\/Introducing-professional-vibe-coding-1024x256.png 1024w, https:\/\/flatlogic.com\/blog\/wp-content\/uploads\/2025\/10\/Introducing-professional-vibe-coding-768x192.png 768w, https:\/\/flatlogic.com\/blog\/wp-content\/uploads\/2025\/10\/Introducing-professional-vibe-coding-1536x384.png 1536w, https:\/\/flatlogic.com\/blog\/wp-content\/uploads\/2025\/10\/Introducing-professional-vibe-coding-2048x512.png 2048w\" data-sizes=\"auto\" data-original-sizes=\"(max-width: 2560px) 100vw, 2560px\"> <\/a><h3 class=\"wp-block-heading\">1. Never use ScrollView to render huge lists<\/h3><p>If you want to display items in React Native with scrollable lists, you have two options &#8211; ScrollView and FlatList components.<\/p><p>ScrollView is easy to implement. However, it&#8217;s also one of the biggest reasons behind the <strong>React Native Android slow performance<\/strong>. The issue shows up even more when the number of items on the list is huge.&nbsp;<\/p><p>Thus, you&#8217;d do better to use FlatList to handle large amounts of data in the list format. The component displays a scrolling list of changing but similarly structured data. The component works best with long lists of data where the number of items changes over time.&nbsp;&nbsp;<\/p><figure class=\"wp-block-image\"><img decoding=\"async\" data-src=\"https:\/\/lh3.googleusercontent.com\/RzEG9Lt1WBYhVeoMIUYLQOHcjDgxQ9npHu0mN_zhKdl9djYQglluoWDQORz6bP2S2nt_YxwUHg6giwljpBDf7yZ7dsYFr9Nl50CkuWh5uZrqgjN142fKHeTF8O4lsNnIfw0T_3BxdXexCCtZ0yaKNjudi-KSSUrXC6pze1mwzOcT9Ku7OBWTihqmFAdIuJj6PzOsVldgGg\" alt=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" \/><\/figure><p><a href=\"https:\/\/blog.codemagic.io\/improve-react-native-app-performance\/\">Source<\/a><\/p><p>However, note that the items in the FlatList component are lazy-loaded. Thus, the feature can make the app use an excessive or inconsistent amount of memory.<\/p><h3 class=\"wp-block-heading\">2. Steer clear of unnecessary renders<\/h3><p>Steering clear of unnecessary renders is a great way to reduce the overall rendering overhead.&nbsp;<\/p><p>The reason behind this is when you avoid unnecessary renders, a component uses the previously cached properties and renders the JSX view returned by the functional component only once even when the component receives the same set of properties multiple times.&nbsp;&nbsp;&nbsp;<\/p><p>You can achieve the same by using React.memo. The feature handles memorization.<\/p><p>Here&#8217;s an example for you to understand this better.<\/p><p>In the example, the Animal component comes with a state variable called leg count. The variable is updated with a number that&#8217;s associated with each pair whenever the button is pressed.<\/p><p>When the button is pressed, the WildAnimal component gets re-rendered. The function happens even though the text property of the component doesn&#8217;t change with render.<\/p><p>React.memo can optimize the process by wrapping the contents of the WildAnimal component with itself.&nbsp;<\/p><figure class=\"wp-block-image\"><img decoding=\"async\" data-src=\"https:\/\/lh5.googleusercontent.com\/SKpwgBQ_3zo2ThjFXj7FNMP43iLmr3UlIofsjDvmjKSmcjLfZlocdDDV6jl2KsVURhJtXZtwhSjRXKcI2zPiInGVVYlnaFdsdEtUsnU47e_v8vnxjk_VvcrSRhCEQDoC1RkW1Eo1TPXimbb4VPSugLkm-2V67NbHkhe1eD1Gqjr7zv1mmvEso6HACXTGKQaF3lZ3RO10Hw\" alt=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" \/><\/figure><p><a href=\"https:\/\/blog.codemagic.io\/improve-react-native-app-performance\/\">Source<\/a><\/p><h3 class=\"wp-block-heading\">3. Steer clear of passing functions inline as props<\/h3><p>Never pass a function inline when you need to pass a function as a property to a component. The reason behind this is doing so makes the parent re-render a new reference. The process creates an additional function.<\/p><p>Thus, the child component re-renders without the props changing.&nbsp;<\/p><p>Instead, declare the function as a class method or as a function inside a functional component. The process helps the references get rid of any possibility of across re-renders.&nbsp;<\/p><figure class=\"wp-block-image\"><img decoding=\"async\" data-src=\"https:\/\/lh5.googleusercontent.com\/M4hRBhJHez-lSTMW8HpJKddPthASiCAiKu5rGmAMgUZQJKY6IZM_QsfwfYDkYq_fU7gssir895YnLB-hCFb0A-dwhRqmVKX3er437MKqGXoKs9B31rFejC8aNDWskkoYq41zEZcnlDzUgcl08W16198rZxsenkOBdl4ASwf0o2iYdezgud7ur_6RHlXgzO6JaGLeaKDnWQ\" alt=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" \/><\/figure><p><a href=\"https:\/\/blog.codemagic.io\/improve-react-native-app-performance\/\">Source<\/a><\/p><h3 class=\"wp-block-heading\">4. Steer clear of arrow functions&nbsp;<\/h3><p>If you&#8217;re asking &#8220;<strong>How to check the performance of a React Native app<\/strong>?&#8221; checking if you&#8217;re using arrow functions is a great way to measure the same.<\/p><p>Arrow functions result in unnecessary re-renders.&nbsp;<\/p><p>That&#8217;s why you shouldn&#8217;t use arrow functions as callbacks in your functions to render views. Furthermore, the arrow function allows each render to generate a new instance of that particular function.&nbsp;&nbsp;<\/p><p>Therefore, whenever reconciliation happens, the <a href=\"https:\/\/flatlogic.com\/blog\/top-10-best-react-native-ui-components-for-mobile-app-development\/\">React Native framework<\/a> compares a difference. The framework never reuses old references if the function reference doesn&#8217;t match, thus avoiding unnecessary re-renders.&nbsp;<\/p><figure class=\"wp-block-image\"><img decoding=\"async\" data-src=\"https:\/\/lh4.googleusercontent.com\/jTxObuJn3HnO8W7l_fgYtafiKCDm2U1f5hhoCRemcSexb-oxdvrnKbB75WbFIQjJvmIbDgLEUoe_Yu94ZAFeYOK8hqIk6Vlh09FPXSbJD5OIIK5EX0VCPk11kt-2lKIssJ4jkyrGd91S-v63-_JoSqx7SqXINQk8u66uJ3jU8Q8oL8WP6SYgn3RyOSOeOYkLeiRjxwzIFw\" alt=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" \/><\/figure><p><a href=\"https:\/\/blog.codemagic.io\/improve-react-native-app-performance\/\">Source<\/a><\/p><h3 class=\"wp-block-heading\">5. Steer clear of implementing bulk reducers<\/h3><p>A brilliant <strong>React Native performance KPI<\/strong> is not implementing bulk reducers.<\/p><p>You should always update only the references that need to be updated. If an item comes with the same value as before, you don&#8217;t need to save a new reference for the same as it&#8217;ll create useless renders.<\/p><p><section class=\"flatlogic-templates\"><a title=\"Bootstrap, Angular, React, Vue templates\" href=\"https:\/\/flatlogic.com\/templates\"><img decoding=\"async\" data-src=\"\/img\/flatlogic-templates.jpeg\" alt=\"React, Angular, Vue and Bootstrap templates\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\"><\/a> <p>In Flatlogic we create web &amp; mobile application templates built with <a title=\"React templates\" href=\"https:\/\/flatlogic.com\/templates\/react\">React<\/a>, <a title=\"Vue templates\" href=\"https:\/\/flatlogic.com\/templates\/vue\">Vue<\/a>, <a title=\"Angular templates\" href=\"https:\/\/flatlogic.com\/templates\/angular\">Angular<\/a> and <a title=\"React Native templates\" href=\"https:\/\/flatlogic.com\/templates\/react-native\">React Native<\/a> to help you develop web &amp; mobile apps faster. Go and check out yourself!<br><a class=\"btn btn-gradient btn-primary mt-sm pull-right\" href=\"https:\/\/flatlogic.com\/templates\">See our themes!<\/a><\/p> <\/section><\/p><p>Thus, if you&#8217;re not using Redux with rematch and\/or normalize or if you&#8217;re writing reducers yourself to an extent, always mutate only the objects that you need to.&nbsp;<\/p><p>Furthermore, when you re-fetch a list of items from the network and save it in the reducer, here&#8217;s what the process will look like:&nbsp;<\/p><figure class=\"wp-block-image\"><img decoding=\"async\" data-src=\"https:\/\/lh6.googleusercontent.com\/3jTg1Jm2Z8nn9Au5RFV-Lwy5avOLALHZza5fm0So8dUO2jMG_82DHqALF7Dn_KsVKMMHKQDP-nk3uQyU4axLu9WcpS-qunNbiWeZ-2LMGkN_fjJHPClyG_N4MrwhUqt_iNHkv9PSuMO0nbQJ3PuggQtMqCjggtPqvbDgXJQYq7vs7U7kkSllp9ZvgAOM-1Vjxlxeybp0kA\" alt=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" \/><\/figure><p><a href=\"https:\/\/blog.codemagic.io\/improve-react-native-app-performance\/\">Source<\/a><\/p><h3 class=\"wp-block-heading\">6. Enable the RAM format<\/h3><p>You can achieve the same in both Android and iOS platforms.&nbsp;<\/p><p>Enabling the RAM format on the iOS platform will create a single indexed file. Afterward, the React Native framework will load one module at a time.&nbsp;<\/p><p>Furthermore, enabling the RAM format on the Android platform will create a set of files for each module on its own. You can force Android <a href=\"https:\/\/flatlogic.com\/generator\">to create a single file<\/a> similar to iOS as well. However, using several files needs less memory on Android and offers better performance.<\/p><p>Edit the build phase &#8220;Bundle React Native code and images&#8221;. Before<\/p><p><code>..\/node_modules\/react-native\/scripts\/react-native-xcode.sh add export BUNDLE_COMMAND=\"ram-bundle\":<\/code><\/p><p>To enable the RAM format in Xcode.<\/p><figure class=\"wp-block-image\"><img decoding=\"async\" data-src=\"https:\/\/lh4.googleusercontent.com\/nlrR8x8AdVwjXpIvW2OvnpsD5QRJfrTCvRUYUgGaeJEO0AqAyjT2UQDMWlFTV22QjLWHTCn9MNMVBpUESb2svovRPOcw72DfcB3_SYSLmpjQ85YlAxGFvk-FXATCTM6bYYvo0bOO5gsucw8MLkXs-6OyqWBEcicANppGaJcS9BIw1o-6pCR7zGV4WL2jYr8mWAZPTdPoQA\" alt=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" \/><\/figure><p><a href=\"https:\/\/blog.codemagic.io\/improve-react-native-app-performance\/\">Source<\/a><\/p><p>To achieve the same on Android, edit the android\/app\/build.gradle file. Before the line apply from: &#8220;..\/..\/node_modules\/react-native\/react.gradle&#8221;, add or amend the project.ext.react block:<\/p><figure class=\"wp-block-image\"><img decoding=\"async\" data-src=\"https:\/\/lh4.googleusercontent.com\/oBFwJMcS6t1gQdUwdglnPLcWDJOykRUs4c2StCH02OI3vFd17aoR8gFWvhTetQIDa2aKCHT4FDYgNY74gQegezu_cg8XbdWHYyPf3FdPDhp5cxp0YrxbNpnZkbWkLUk7V2WeyWVJohQflwr-Tmva9JthW0cDKgTM7ioiSlHt2wFPf7eyVhy67om23YP0MQ8CxnH9GWGQMw\" alt=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" \/><\/figure><p><a href=\"https:\/\/blog.codemagic.io\/improve-react-native-app-performance\/\">Source<\/a><\/p><p>Note that if you&#8217;re using the Hermes JS engine, you won&#8217;t need RAM bundles. When the framework loads the bytecode, the mmap makes sure that the entire file doesn&#8217;t get loaded.<\/p><h3 class=\"wp-block-heading\">7. Opt for uncontrolled inputs<\/h3><p>A key difference between <strong>React Native performance vs <\/strong><a href=\"https:\/\/flatlogic.com\/blog\/10-ways-to-optimize-the-performance-of-a-react-app\/\"><strong>React <\/strong>performance<\/a> is that uncontrolled inputs in React Native increase the performance; a phenomenon that&#8217;s the opposite in React.<\/p><p>The reason behind this is that controlled inputs in the <a href=\"https:\/\/flatlogic.com\/blog\/top-react-native-ui-components-libraries\/\">React Native framework<\/a> lead to rendering glitches while updating the view.&nbsp;<\/p><p>Use uncontrolled inputs. All you need to do to achieve that is remove the value property. Whenever you modify an uncontrolled input, there&#8217;ll be no state changes and thus there&#8217;ll be no re-renders.&nbsp;&nbsp;<\/p><figure class=\"wp-block-image\"><img decoding=\"async\" data-src=\"https:\/\/lh6.googleusercontent.com\/Vn13xiNuoUGxddmqVTD4TrBGPOQO_zaqU3eFiByL9qdk0ww2U5L2OJzaro4MOQYrBeIEF_EMtd9TrUANMcwGCXcRQzsgM_92JM0R0gmL16cDxbUMoELfCANMWfpYOBY9zcZh00TEsKFRzarg9D_FYnKAPfvP5Bm7pipcwxKCeQVcdMOPpH_y93EvfvkNB3Pvnfg99MRuJw\" alt=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" \/><\/figure><p><a href=\"https:\/\/blog.codemagic.io\/improve-react-native-app-performance\/\">Source<\/a><\/p><h2 class=\"wp-block-heading\">Ways to improve the performance of a React Native app &#8211; upskill to stay on top of your game<\/h2><p>Glassdoor confirmed a React developer in the U.S. earns <a href=\"https:\/\/www.glassdoor.com\/Salaries\/react-native-developer-salary-SRCH_KO0,22.htm\">$95,641<\/a> per year on average. Furthermore, the highest-paying React developers in the U.S. earn <a href=\"https:\/\/www.glassdoor.com\/Salaries\/react-native-developer-salary-SRCH_KO0,22.htm\">$149k<\/a>. <\/p><p><br>Thus, the job is a lucrative one. Now that you know the<strong> 7 ways to improve the performance<\/strong> of a React native app, you can stay ahead of the game. <strong>Read more:<\/strong><\/p><ul class=\"wp-block-latest-posts__list wp-block-latest-posts\"><li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/flatlogic.com\/blog\/do-you-own-the-code-in-ai-builders\/\">Do You Own the Code in AI Builders? A Practical Checklist<\/a><\/li><li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/flatlogic.com\/blog\/research-starting-a-web-app-ai-vibe-coding-and-what-actually-works\/\">[Research] Starting a Web App in 2026: AI, Vibe Coding, and What Actually Works<\/a><\/li><li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/flatlogic.com\/blog\/how-much-does-a-web-app-cost\/\">How Much Does a Web App Cost? A Scope-Based Calculator<\/a><\/li><li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/flatlogic.com\/blog\/why-most-ai-app-builders-fail\/\">Why Most AI App Builders Fail After the First Demo<\/a><\/li><li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/flatlogic.com\/blog\/what-is-an-admin-panel-in-modern-saas\/\">What Is an Admin Panel in Modern SaaS?<\/a><\/li><\/ul>","protected":false},"excerpt":{"rendered":"<p>You&#8217;re convinced that the React Native framework is a big deal. However, before you go and hire a React Native developer to build your app, read this article. In the next five minutes, the article will discuss 7 ways to improve the performance of a React Native app.<\/p>\n","protected":false},"author":38,"featured_media":13370,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"flatlogic_tldr":"Use FlatList for large lists; avoid ScrollView to prevent memory\/performance hits\nReduce re-renders with React.memo and stable callback references\nAvoid inline and arrow function props; define callbacks once\nEnable RAM bundles (or use Hermes) and prefer uncontrolled inputs","flatlogic_facts":[{"text":"React Native ranked 6th in Stack Overflow Developer Survey 2021 with 14.51% of votes.","source":"https:\/\/insights.stackoverflow.com\/survey\/2021"},{"text":"14.85% of installed apps among the top 500 U.S. apps are built with React Native.","source":"https:\/\/www.stxnext.com\/blog\/why-use-react-native-your-mobile-app\/"},{"text":"A U.S. React Native developer earns $95,641 per year on average, per Glassdoor.","source":"https:\/\/www.glassdoor.com\/Salaries\/react-native-developer-salary-SRCH_KO0,22.htm"},{"text":"Top U.S. React Native developer salaries reach $149,000 per year, per Glassdoor.","source":"https:\/\/www.glassdoor.com\/Salaries\/react-native-developer-salary-SRCH_KO0,22.htm"},{"text":"Using the Hermes JS engine removes the need for RAM bundles; bytecode is mmap-loaded.","source":"https:\/\/blog.codemagic.io\/improve-react-native-app-performance\/"}],"footnotes":""},"categories":[1],"tags":[293,22,321,79],"class_list":["post-13369","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-application-performance","tag-react-native","tag-reactjs-development","tag-web-development"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.2 (Yoast SEO v26.2) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to Improve the Performance of a React Native App? - Flatlogic Blog<\/title>\n<meta name=\"description\" content=\"You\u2019re convinced that the React Native framework is a big deal. However, before you go and hire a React Native developer to build your app, read article\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/flatlogic.com\/blog\/how-to-improve-the-performance-of-a-react-native-app\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Improve the Performance of a React Native App?\" \/>\n<meta property=\"og:description\" content=\"You\u2019re convinced that the React Native framework is a big deal. 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