Optimizing v0-Generated Code for Performance

v0 components are generally well-optimized for rendering since they use shadcn/ui. Issues arise during integration: components that re-render on every parent state change, images without optimization, and no loading skeletons for data-dependent sections

Wrap data-dependent sections with Suspense and loading skeletons. Use server components where possible to reduce client-side JavaScript. Optimize images with next/image. Memoize expensive derived data. Add pagination for lists that could grow large

Before optimizing, measure. Use your browser's Lighthouse audit to get a baseline score. Check Core Web Vitals (LCP, FID, CLS) — these directly affect your Google ranking. Use the Performance tab in DevTools to identify which components take the longest to render. For server-side performance, add timing logs to API routes to find slow endpoints.

The fastest way to improve performance: optimize and lazy-load images, enable compression on your server, remove unused CSS and JavaScript, implement code splitting so users only download code for the page they're viewing, and add proper caching headers for static assets. These changes alone can cut load times significantly.

If your v0 app uses a database, slow queries are often the biggest performance bottleneck. Add indexes on columns you filter or sort by. Use SELECT to fetch only the columns you need instead of SELECT *. Implement pagination for lists — loading 10,000 rows at once will always be slow. Consider adding a caching layer for data that doesn't change frequently.