Why Web Performance Matters More Than You Think

Performance isn't just about making things fast. It's about respecting your users' time, their devices, and their data plans.

The Real Cost of Slow

When your site takes 5 seconds to load:

• Users leave. 53% of mobile users abandon sites that take longer than 3 seconds
• You lose revenue. Amazon found that every 100ms of latency costs them 1% in sales
• You waste resources. Slow sites consume more battery, more data, more server capacity

Measure What Matters

Don't just look at Time to First Byte (TTFB). Focus on metrics that affect users:

• First Contentful Paint (FCP) - When users see something meaningful
• Largest Contentful Paint (LCP) - When the main content appears
• Cumulative Layout Shift (CLS) - Visual stability
• Time to Interactive (TTI) - When users can actually interact

Quick Wins

1. Optimize images - Use modern formats (WebP, AVIF), lazy loading, and responsive sizes
2. Minimize JavaScript - Code splitting, tree shaking, and removing unused dependencies
3. Leverage caching - Browser caching, CDN caching, and service workers
4. Reduce render-blocking resources - Defer non-critical CSS and JavaScript

The Bottom Line

Performance is a feature. Treat it like one.