Frontend performance is critical for user retention and satisfaction. This article covers techniques to optimize load times and responsiveness.

Minimizing Asset Sizes

Compress images and minify CSS and JavaScript files to reduce load times.

Use modern image formats like WebP for better compression without quality loss.

Lazy Loading and Code Splitting

Implement lazy loading to defer non-critical resources until needed.

Use code splitting to divide bundles, reducing initial page load sizes.

Optimizing Rendering and Repaints

Avoid unnecessary DOM manipulations and use requestAnimationFrame for animations.

Minimize layout thrashing by batching DOM reads and writes.

Monitoring and Continuous Improvement

Use tools like Lighthouse and DevTools to measure performance metrics regularly.

Set performance budgets and continuously optimize as your app evolves.