Early in my React Native journey, I went deep into performance optimization: FlashList, strict dependency arrays, wrapping everything with "memo", "useMemo" and using "useCallback" almost everywhere. At one point I stopped and asked: If preventing re-renders is always good… why doesn’t React do it automatically? That question changed how I think about performance. Re-renders aren’t the enemy. Unnecessary expensive work is. And memoization isn’t free — it adds complexity, comparison cost, and sometimes subtle bugs. What I’ve learned over time: - Optimize for user experience, not render count - Keep components simple first - Measure before optimizing - Use memoization as a tool, not a default Good performance isn’t about stopping React from working — it’s about letting it work efficiently. #ReactNative #Performance #SoftwareEngineering #FrontendDevelopment
Kaushal Rathour that question about re-renders changes everything for performance thinking.
I’ve been building something in my spare time around this: https://www.garudax.id/posts/samdewan_been-working-on-a-side-project-a-dev-tool-activity-7450561297961660416-BFSw?utm_medium=ios_app&rcm=ACoAACMNMOMB8uI385rk0qtsax3qNiEkat3urPw&utm_source=social_share_send&utm_campaign=copy_link I agree, insight is more important than broad optimizations without understanding if the optimization wrappers are hurting you more than helping