web-performance-optimization

Installation
SKILL.md

Web Performance Optimization

Systematic approach to diagnosing and fixing web performance issues across loading, rendering, and runtime.

Business Impact: 1 second delay = 7% conversion loss. 0.1s improvement = 8% increase in conversions.

When to Use

  • Lighthouse score below 90 or page speed regression
  • Slow LCP (>2.5s), high CLS (>0.1), poor INP (>200ms), high TBT
  • Large JavaScript bundles, render-blocking resources
  • Layout shifts, jank, slow Time to Interactive (TTI)
  • Setting up performance monitoring or budgets
  • Implementing View Transitions, Speculation Rules, Server Components, Islands Architecture

Quick Reference

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2
Repository
lu1sdv/skillsmd
GitHub Stars
1
First Seen
Apr 25, 2026