SaaS performance optimization techniques

Speed is a Feature

Learn about code splitting, CDN edge caching, and database query optimization to keep your SaaS responsive under load. Performance directly impacts conversion and retention.

Frontend Optimization

Implement code splitting to load only required JavaScript. Use React.lazy for route-based splitting. Compress images and use modern formats (WebP, AVIF).

CDN and Caching

Deploy static assets to CDN. Cache API responses with appropriate TTLs. Use service workers for offline capabilities and faster repeat visits.

Database Query Optimization

Add indexes for frequently queried columns. Analyze slow queries with EXPLAIN. Avoid SELECT * - fetch only needed columns. Implement query result caching for expensive operations.

API Performance

Implement pagination for list endpoints. Use webhooks instead of polling. Batch API requests where possible. Consider GraphQL for flexible data fetching.

Monitoring Performance

Set up Real User Monitoring (RUM). Track Core Web Vitals. Identify regressions before users notice. Aim for sub-second response times.