React Native performance optimization skills from Callstack's Ultimate Guide. Covers JavaScript/React, Native (iOS/Android), and bundling optimizations for FPS, TTI, memory management, and app size reduction.
Provides React Native performance optimization guidelines for FPS, TTI, bundle size, memory leaks, re-renders, and animations. Applies to tasks involving Hermes optimization, JS thread blocking, bridge overhead, FlashList, native modules, or debugging jank and frame drops.