Hi everyone,I'm developing a mobile app (using [Flutter / React Native / native Android / iOS – choose your tech stack]) and I’m running into performance issues when rendering a screen with a long list of items. The list includes images, text, and interactive buttons, and performance drops significantly when scrolling fast.
I’ve tried the following:
Lazy loading / virtualization (FlatList, RecyclerView, etc.)
Image caching
Reducing re-renders with shouldComponentUpdate / memo
Still, the screen lags noticeably on mid-range devices. What are some best practices or tools you recommend for profiling and optimizing performance in such scenarios?
Thanks in advance!



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To optimize a list-heavy screen in a mobile app:
Use virtualized lists (render only visible items).
Implement pagination/infinite scroll instead of loading all data.
Optimize and cache images with lazy loading.
Reduce re-renders using memoization/pure components.
Keep layouts lightweight and use skeleton loading for smooth UX.
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