I will optimize your react nextjs website speed and core web vitals


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Is your React or Next.js site slow, or struggling with Core Web Vitals?
I'll dig into your site, find what's actually causing the slowdown, and fix it - not just change random settings and hope for the best.
What I look at:
Core Web Vitals, slow page loads, oversized images, heavy JavaScript/CSS, sluggish components, font and third-party resource loading, unnecessary client-side JavaScript, and Next.js rendering issues across both mobile and desktop.
What you get:
A clear performance analysis, the actual causes of the problems, the fixes, a before-and-after comparison, and clean code you can maintain afterward. I'll also test the changes once everything is done.
My stack: React, Next.js, JavaScript, TypeScript, Tailwind CSS, HTML, and CSS.
Before you order, send me:
- Your website URL
- What's going wrong, in your own words
- A PageSpeed or Lighthouse report, if you have one
- GitHub repository or project files if code changes are needed
Not sure what's slowing your site down?
Send me the URL and tell me what you're experiencing. I'll take a look and let you know what could be improved.
Respeta los derechos de terceros
Recuerda que incluir temas, plantillas o cualquier otro elemento que viole los derechos de terceros o las leyes aplicables en los trabajos entregados va en contra de las políticas de Fiverr. Puedes ver más información en Guía para la creación digital responsable.
Conoce a Imad Khan
Full Stack Developer Nextjs React and Nodejs Specialist
- DePakistán
- Miembro desdeago 2025
- Responde aprox. en:2 horas
- Última entrega5 meses
Idiomas
Urdu, Pashto, Inglés
Mi porfolio
FAQ
Do you guarantee a specific PageSpeed score?
No — too much of that score depends on things outside the code, like hosting, server response time, and third-party scripts. I'll focus on what can actually be fixed.
Do you work with both React and Next.js?
Yes, both. That covers loading speed, rendering, JavaScript, images, fonts, and Core Web Vitals.
Do you need my source code?
Usually just the URL for the first analysis. If fixes need code changes, I'll ask for the project files or GitHub repo at that point.
Can you improve mobile performance specifically?
Yes — I look at mobile and desktop separately, since the bottlenecks aren't always the same on each.
Can you work on a site that's already live?
Yes. I'll review how it's performing now, then optimize from there.
My site is slow and I don't know why — can you figure it out?
Send me the URL and I'll dig into the performance data to find what's actually causing it.

