What are the best practices for optimizing React app performance?

Here are key strategies for optimizing React performance: 1. **Code Splitting & Lazy Loading** - Use React.lazy() and Suspense for route-based splitting - Implement dynamic imports for heavy components 2. **Memoization Techniques** - Use React.memo() for expensive components - Apply useMemo() for costly computations - Utilize useCallback() for function references 3. **Virtual List Rendering** - Implement react-window or react-virtualized for long lists - Only render visible items in viewport 4. **State Management** - Keep state as local as possible - Use context API judiciously - Consider state management libraries for complex apps 5. **Bundle Optimization** - Tree shaking and dead code elimination - Minimize bundle size with tools like webpack-bundle-analyzer Would you like me to elaborate on any of these techniques?