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performance

Identify and fix web performance bottlenecks in single-page and multi-page sites.

135|25|Updated Feb 20, 2026
Search Tags:#caching#optimization#lighthouse#web-performance#core-web-vitals#performance-budget#page-load
One-click install
npx skills add https://github.com/jvm-skills/jvm-skills --skill performance-jvm-skills
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: performance
Source: https://github.com/jvm-skills/jvm-skills/tree/main/.junie/skills/performance-web
Command: npx skills add https://github.com/jvm-skills/jvm-skills --skill performance-jvm-skills

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Optimize web performance by focusing on Lighthouse audits, Core Web Vitals, and bottleneck removal to speed up pages.

Core Features & Use Cases

  • Performance budgeting and audits to guide optimization
  • Guidance for server response, resource loading, caching, and asset optimization
  • Use cases include speeding up slow landing pages, auditing apps, and applying performance budgets

Quick Start

Analyze a web page and apply targeted optimizations following Lighthouse recommendations.

Frequently Asked Questions about performance

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I improve Core Web Vitals and speed up page load times?▼

Improve Core Web Vitals by identifying and fixing web performance bottlenecks. This involves applying targeted optimizations for server response timing, resource loading strategies, compression, and caching to speed up page loading.

What is a performance budget and how does it guide web optimization?▼

A performance budget sets limits on resource sizes and loading metrics to guide optimization. It establishes constraints for assets like JavaScript and CSS, ensuring pages maintain fast loading speeds and pass Lighthouse audits.

How do I optimize images and fonts to improve web performance?▼

Optimize images and fonts by applying specific loading and compression guidelines. Proper font loading and image optimization reduce render-blocking resources, directly improving overall page loading speed and user experience.

Does this web performance optimization guidance work for single-page apps?▼

Yes, this optimization guidance applies to both single-page apps and multi-page sites. It provides actionable steps for JavaScript and CSS optimization during development, audits, and production environments.

What's the best way to fix slow landing pages using Lighthouse recommendations?▼

Fix slow landing pages by analyzing the web page and applying targeted optimizations following Lighthouse recommendations. Focus on resource loading strategies, server response timing, and caching to remove bottlenecks.

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