To optimize React performance, consider:

• Memoization: Use React.memo for functional components to prevent unnecessary re-renders.
• Virtualize Lists: Use libraries like react-window or react-virtualized to render only visible items in large lists.
• Lazy Loading: Split code using React.lazy and Suspense to load components only when needed.
• Avoid Inline Functions: Move inline functions defined in JSX to avoid re-creation on each render.
• Use useMemo and useCallback: Optimize heavy computations and function references.
• Profiling: Use React DevTools Profiler to identify slow components.

Example of lazy loading:

const LazyComponent = React.lazy(() => import('./MyComponent'));
function App() {
 return (
   <Suspense fallback={<div>Loading...</div>}>
     <LazyComponent />
   </Suspense>
 );
}