Optimizing Create.xyz-Generated Code for Performance

MongoDB queries in Create.xyz apps typically fetch entire collections without indexes or limits. The React frontend re-renders on every state change without memoization. MongoDB schemas often lack indexes, causing full collection scans for any filtered query

Add MongoDB indexes on fields used in queries (user ID, created date, status). Implement pagination with cursor-based or skip/limit patterns. Use React.memo and useMemo for expensive list renderings. Add MongoDB projection to return only the fields needed, not entire documents

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 Create.xyz 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.