Breaking the Limits of React Native with Multithreading
summary
Claim is that React Native can be pushed beyond single-thread limits by moving heavy work off JavaScript into native layers using JSI and native C++ or Java bindings. Uses Reanimated, Expo modules and a JSI-backed storage MMKV with measured 30x faster startup than async storage. A Flappy Bird clone runs at 60 FPS on an iPhone 14 Pro simulator after offloading Fibonacci and game loop logic to native code, proving JS thread stays responsive and the approach works.
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chapters (5)
- 0:00Introduction and overview
- 3:20React Native threading model
- 7:58Reanimated and JSI explained
- 12:11Best practices for performance
- 15:40Real-world multithreading demo
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