Why Speed Matters
A 1-second delay in page load can reduce conversions by 7%. For ecommerce, speed equals revenue.
Image Optimization
Use WebP format, lazy loading, and responsive srcset. These alone can cut page weight by 50%.
App Audit
Every Shopify app adds JavaScript. Audit your apps quarterly and remove any you're not actively using.
Core Web Vitals
Focus on LCP (largest contentful paint), FID (first input delay), and CLS (cumulative layout shift).