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React Native Performance Optimization with DMAIC
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A Practical Guide and Case Study
- Pay attention to UI re-renders
- Use dedicated components for certain layouts
- Think twice before you pick an external library
- Optimize your app’s JavaScript bundle
- Always remember to use libraries dedicated to the mobile platform
- Find the balance between native and JavaScript
- Animate at 60FPS - no matter what
- Replace Lottie with Rive
- Always run the latest React Native version to access the latest features
- How to debug faster and better with Flipper
- Experiment with the New Architecture of React Native
- Optimize your Android application startup time with Hermes
- Optimize your Android application’s size with Gradle setting
- Avoid unused native dependencies
- Run tests for key pieces of your app
- Have a working Continuous Integration (CI) in place
- Don’t be afraid to ship fast with Continuous Deployment
- Ship OTA (Over-the-Air) in an emergency
- Know how to profile iOS
- Know how to profile Android
It's been fantastic to work with Callstack to bring React Native to Windows 7 and 8, and then to bring React Native to game console products as well. I'm really excited with my new venture, Rebecker Specialties, to work with Callstack to bring React Native to the Apple Vision Pro and to mixed reality platforms.
This is the book and the people that encapsulates a lot of the work we drove at PlayStation to make React Native able to achieve the 1.0 goal of 200ms app Time To Interactive and 600ms Time To Fresh Data on PS5. I was so pleased we got the uplift into the product and put into open source. I really can’t recommend Callstack enough for this kind of hard-core, magical, disruptive technical execution.
There are so many tricky parts to making a great native app, and to lower the barrier to entry, React Native can abstract away things that you might want to come back and check on later once you’ve got your app up and running – this ebook does a solid job of helping you understand how to really get from good to great.
Feel like a functionality is missing in Flipper? Good news! Flipper is easily extensible and has a comprehensive guide on how to write custom plugins in React. Why not build your own?
I’m extremely proud to represent github.com/callstack/react-native-visionos team at React Open Source Awards ceremony today at #reactsummit! Big shoutout for @o_kwasniewski and @syke for making this happen. Well deserved recognition
What You’ll Learn in This Guide
What You’ll Learn in This Guide
1. A detailed explanation of the DMAIC methodology and how it can be applied to React Native performance optimization.
2. A real-world case study demonstrating how a sluggish app was transformed into a high-performing experience.
3. Measurable results, including:
○ App start time reduced from 48.5 seconds to 16.8 seconds.
○ Message sending time cut by 83% (from 14.5 seconds to 2.5 seconds).
○ Report screen load time improved from 15.9 seconds to 8.6 seconds.
○ Search screen load time optimized from 11.8 seconds to 2.6 seconds.
4. Actionable insights to apply these strategies to your own projects and achieve similar results.
What You’ll Learn in This Guide
Ready to Optimize Your React Native App?
