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English
$
USD
I will fix lag and optimize your expo react native app
About this Gig
Is your React Native or Expo app lagging? Does your FlatList stutter or your UI feel heavy? Most devs build features, but they forget about the JS Thread. If your app isn't hitting 60fps, users will leave.
I'm a developer who obsesses over performance. I've built high-speed apps and I know exactly where the "bottlenecks" hide. I don't just guessI use advanced techniques to make your app buttery smooth.
What I'll optimize for you:
- Render Control: Memoization (React.memo, useMemo, useCallback) to stop useless re-renders.
- List Tuning: Fixing slow ScrollViews with optimized FlatLists using getItemLayout and windowSize.
- Fast Images: Switching to expo-image for native caching and blur placeholders.
- Logic & Threading: Moving heavy tasks off the JS thread using InteractionManager.
- Animations: Upgrading laggy JS animations to React Native Reanimated (Native Thread).
- Bundle Size: Tree shaking and removing heavy dependencies.
I'm just a dev who loves clean, fast code. Please message me first! Send me a screen recording of the lag so I can tell you exactly which package you need.
Best,
Simanta
My Portfolio
FAQ
Will I see a real difference in speed?
Yes. Especially on older Android devices where lag is most noticeable.
Do I need to share my source code?
Yes. I need to look at your components and logic to find why they are re-rendering. You can send a Zip or GitHub access.
What is "Before/After" proof?
For the Premium package, I will record the app's performance markers before and after my changes so you can see the technical improvement.
