I will optimize your react js or next js app for speed


About this gig
Is your React or Next.js app loading slowly? Losing users because of poor Core Web Vitals scores? I fix that.
I audit and optimize React.js and Next.js frontends to cut load times by 20-40%, improve LCP, CLS, and INP scores, and make your app feel fast on every device.
What I deliver:
- Full Lighthouse + Core Web Vitals audit report
- Bundle size analysis and code splitting fixes
- Lazy loading and image optimization
- React.memo, useMemo, useCallback refactoring
- SSR/SSG migration advice for Next.js apps
- Before/after Lighthouse score comparison
- Typescript Specialization
I've optimized high-traffic e-commerce stores and SaaS dashboards built on React.js and Next.js, achieving measurable performance improvements in production. I work on a separate branch and deliver via PR no risk to your live app.
Message me first so I can review your site and give an honest estimate before you order.
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Get to know Muhammad Hassan
React Next Developer, TypeScript Expert, ECommerce and SaaS
- FromPakistan
- Member sinceAug 2022
- Avg. response time1 hour
Languages
Urdu, English
My Portfolio
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FAQ
Do you need full access to my codebase?
Read-only access works for the audit. For fixes, I create a separate branch and submit a PR for your review — nothing merges without your approval.
What's a realistic improvement I can expect?
Most React and Next.js apps I've worked on see 20-40% load time reduction. I'll give you an honest estimate after reviewing your site before you order.
Do you work with Next.js App Router and SSR apps?
Yes. Next.js SSR, SSG, and App Router optimization is a core specialization — including TTFB, hydration performance, and React Server Components.
Will your fixes break my existing features?
No. All changes are non-breaking refactors delivered on a separate branch. You review everything before it goes live.
What if my app uses TypeScript?
TypeScript is my default. All fixes are delivered in TypeScript with proper typing — no any types introduced.
