If your Lighthouse scores are in the red or users are bouncing because pages feel sluggish, this walks you through the full optimization cycle. It covers the usual suspects: bloated JavaScript bundles, unoptimized images, missing cache headers, and Core Web Vitals issues like layout shift and slow LCP. The examples are thorough, showing before and after code for things like replacing Moment.js with date-fns, implementing lazy loading, and adding proper image dimensions to prevent CLS. What's helpful is the structured approach: measure with Lighthouse, identify bottlenecks, prioritize fixes, then verify improvements. It's practical stuff for when you need to get a site from a 62 performance score to something you won't be embarrassed to ship.
npx skills add https://github.com/davila7/claude-code-templates --skill web-performance-optimization