Skills › Frontend Engineering

Frontend Performance

Optimise Core Web Vitals, bundle size, and rendering performance.

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After this skill you can…

  • Achieve a 90+ Lighthouse score
  • Implement lazy loading and code splitting
  • Measure and improve LCP, FID, and CLS

Prerequisites

Watch (10 videos)

Full Stack Development Tutorial - THE FULL PROCESS!
DesignCourse · beginner hands-on
→ Build a full stack application→ Design UI/UX for a web app
Updating a Slow Website (P3D1) - Live Coding with Jesse
freeCodeCamp.org · beginner hands-on
→ Optimize website load times→ Use live coding for front-end development
PWA Tutorial for Beginners #16 - Getting Cached Assets
Net Ninja · beginner hands-on
→ Build a PWA with cached assets→ Enable offline behavior in a web app
Google Hackathon on AIR - Mobile Performance Fundamentals
Google Search Central · advanced hands-on
→ Optimize mobile page loading→ Implement lazy loading→ Test performance with WebpageTest
Angular Projects | Learn How to Build Angular 8 Projects from Scratch | Angular | Edureka Rewind
edureka! · intermediate hands-on
→ Build high-performance web applications→ Optimize frontend code
LESS & SASS: Build and Optimize CSS Faster
Coursera · intermediate hands-on
→ Optimize CSS with LESS and SASS→ Build modular and reusable CSS
Make Your React Site 100% Faster With This Amazing FREE Tool
Web Dev Simplified · intermediate hands-on
→ Optimize React site performance→ Use React Scan to detect issues
How to make your webflow website super fast
Flux Academy · beginner hands-on
→ Optimize website loading speed→ Improve Webflow performance
React Router Tutorial | React DOM Tutorial | ReactJS Redux Training | Edureka Rewind
edureka! · beginner hands-on
→ Build a React application with React Router→ Implement routing in a React app
Do Less & Be Lazy: Practical Performance Patterns for Polymer (Polymer Summit 2016)
Chrome for Developers · intermediate hands-on
→ Implement performance patterns for Polymer→ Analyze web application performance

Read (10 articles)

📄
Stop Overengineering: 7 Browser APIs You're Already Ignoring
Dev.to · AttractivePenguin · 2026-04-13
📄
ReactJs Performance ~ Virtualization for Large Lists~
Dev.to · Ogasawara Kakeru · 2026-04-20
📄
ReactJs Performance ~ Tree Shaking and Bundle Analysis ~
Dev.to · Ogasawara Kakeru · 2026-04-29
📄
Angular’s New injectAsync() API Explained
Dev.to · Brian Treese · 2026-05-08
📄
Part I: Don't Wait for Data. Render What You Know.
Dev.to · Pratik Goswami · 2026-05-19