performance

Optimize React Native FlatList scrolling by implementing `getItemLayout` to skip measurement and adjusting `windowSize` to control rendered items. These targeted adjustments fix laggy list rendering and reduce resource consumption for better user experience.

Use `useMemo` and `useCallback` for React Native optimization when you need to cache expensive computations and stabilize callbacks to prevent unnecessary component re-renders. Apply them strategically based on profiling data to ensure effective resource management.

`React.memo` works with FlatList item components to optimize individual list elements by preventing re-renders when props remain unchanged. Wrapping list items like `ProductListItem` in `React.memo` enhances list rendering speed and overall application performance.

The best way to fix slow React Native component rendering is applying memoization techniques with `useMemo` and `useCallback`, alongside `React.memo` for component wrapping. Address bottlenecks strategically using profiling data to enhance user experience.

React Native apps may still lag after adding memoization if techniques are applied without strategic profiling data. Optimization requires identifying actual bottlenecks first, ensuring `useMemo`, `useCallback`, and `windowSize` adjustments target genuine performance issues.