How do I optimize front-end performance?

Front-end performance optimization involves reducing load times and improving interactivity. Key strategies include optimizing images (compression, modern formats like WebP, lazy loading), minimizing CSS and JavaScript (minification, tree-shaking, code splitting), using CDNs for static assets, implementing caching strategies, reducing render-blocking resources, and optimizing fonts. Use performance monitoring tools to identify bottlenecks. Prioritize above-the-fold content loading first. Consider using frameworks that support server-side rendering or static generation. Example: A site improved load time from 5 seconds to 1.5 seconds by optimizing images, implementing code splitting, and using a CDN, resulting in 30% lower bounce rate.