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performance-profiling

Analyze web performance with Lighthouse audits for Core Web Vitals metrics.

1|Updated Dec 13, 2025
Search Tags:#performance#web vitals#optimization#auditing#profiling#lighthouse
One-click install
npx skills add https://github.com/GrupoUS/gpus --skill performance-profiling-grupous
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: performance-profiling
Source: https://github.com/GrupoUS/gpus/tree/main/.claude/skills/performance-profiling
Command: npx skills add https://github.com/GrupoUS/gpus --skill performance-profiling-grupous

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) components.

What problem does it solve?

This Skill addresses the critical need to identify and resolve performance bottlenecks in web applications, ensuring faster load times, improved user experience, and better search engine rankings.

Core Features & Use Cases

  • Automated Auditing: Leverages Lighthouse to perform comprehensive performance, accessibility, best practices, and SEO audits.
  • Bottleneck Identification: Provides insights into Core Web Vitals (LCP, INP, CLS) and analyzes runtime and memory usage.
  • Optimization Guidance: Offers actionable advice on bundle analysis, common bottlenecks, and quick win priorities.
  • Use Case: A developer can use this skill to audit their website's performance, receive a detailed report on areas needing improvement, and get specific recommendations on how to optimize JavaScript bundles and image loading.

Quick Start

Run a performance audit on the website https://example.com.

Frequently Asked Questions about performance-profiling

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

FAQPage Schema
How do I audit my website's Core Web Vitals and identify performance bottlenecks?▼

You can audit Core Web Vitals by running a Lighthouse performance audit to measure loading, interactivity, and stability metrics, which identifies bottlenecks in JavaScript execution, rendering, and memory usage.

What is the best way to optimize JavaScript bundles and improve overall site speed?▼

The best way to optimize JavaScript bundles is by analyzing runtime and bundle usage to receive actionable guidance, prioritizing quick wins that directly improve Core Web Vitals and overall site speed.

Can I use Lighthouse audits to measure loading, interactivity, and visual stability for my web app?▼

Yes, you can use Lighthouse audits to comprehensively measure loading, interactivity, and visual stability metrics, providing detailed reports on your web app's performance, accessibility, and SEO.

How do I fix slow loading times caused by JavaScript execution and rendering issues?▼

To fix slow loading times, analyze JavaScript execution and rendering bottlenecks through runtime and bundle analysis, then apply the provided actionable optimization strategies to resolve the identified issues.

Does Lighthouse performance profiling work for analyzing memory usage on any website?▼

Lighthouse performance profiling analyzes memory usage and runtime behavior through automated auditing, making it suitable for identifying performance bottlenecks on any website you need to evaluate.

Why does my website have a poor LCP score and how can I improve it?▼

A poor LCP score often results from rendering and loading bottlenecks, which you can identify through a Lighthouse audit and fix by applying actionable optimization strategies for image loading and JavaScript execution.

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