optimization questions

To optimize performance in React Native, consider using `React.PureComponent` or `React.memo` to prevent unnecessary re-renders. Optimize list rendering by using `FlatList` with proper keys and implementing `shouldComponentUpdate` to reduce updates. Also, avoid heavy computations on the main thread and use libraries like `react-native-fast-image` for optimized image loading.

You can adjust salt rounds based on your server's capabilities. If performance is critical, start with a lower number, like 8, and gradually increase it as your system's performance improves. Monitor the hash time and user experience to find an optimal balance.

Next.js provides an `Image` component for automatic image optimization. It ensures images are properly sized, compressed, and served in the best format. Example: Use the `Image` component instead of the regular `img` tag to take advantage of lazy loading and responsive sizing.