Optimizing Base44-Generated Code for Performance

Base44 generates list views that fetch all records without pagination, which works for small datasets but degrades quickly. The generated PostgreSQL schema often lacks indexes beyond the primary key, causing slow queries as data grows

Add pagination to all list API endpoints and corresponding UI. Add PostgreSQL indexes on foreign keys and columns used in WHERE clauses. Review the query plan for complex queries with EXPLAIN ANALYZE. Implement caching for frequently read, rarely written data

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 Base44 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.