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I will do website speed optimization for your react or nextjs site
Alan Nguyen
About this gig
Your site is slow, and people leave before it finishes loading.
Most speed gigs install a caching plugin, run the test, and send you a screenshot. The score moves. The site still feels slow on a phone. I fix what visitors actually feel - images, JavaScript, fonts and rendering - and I measure it on mobile, where your traffic really is.
WHAT YOU GET
- A Lighthouse report before and after, so you can see exactly what changed
- Faster loading on real phones, not just a better score
- Core Web Vitals fixed, which Google uses for ranking
- A check that nothing broke - layout, images and forms all still work
WHY ME
- I run my own store with 12,000+ orders, so a slow page costs me money too
- Software Engineer delivering enterprise projects for clients in the US, Europe and Japan
- I build in React and Next.js every day, so I know where these sites get slow
- English at B2 level (TOEIC 800) and quick to reply
Send me your URL before you order. I will run the test myself and tell you what is actually slowing it down and how much faster I can realistically make it.
If the problem is your hosting and not your code, I will say so instead of taking your money.
Portfolio: https://anhkhoa.info
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Get to know Alan Nguyen
Alan Nguyen
Full Stack Developer for Web, Mobile and AI Integrated Apps
- FromVietnam
- Member sinceApr 2022
- Last delivery4 years
Languages
English, Vietnamese
Hi, I'm Alan - a Full-Stack Developer with 6,500+ hours building production web & mobile apps.
I specialize in Next.js/React, React Native, and AI-integrated products. I built Deewas, an AI finance app live on the App Store & Google Play, and Anpha Shop, an e-commerce platform with 3,500+ customers and 12,000+ orders.
What I offer:
- Custom websites & portfolios
- Mobile apps (iOS & Android)
- E-commerce platforms
- AI integration (Claude, OpenAI)
I test what I build and communicate clearly. Message me with your project.
Portfolio: https://anhkhoa.info
My Portfolio
Other Website Maintenance Services I Offer
FAQ
1. Do you work on WordPress, Shopify or Wix sites?
No. I only work on sites built with React, Next.js or plain JavaScript. WordPress and Shopify speed work needs someone who knows those plugins inside out, and hiring me for it would waste your money.
2. Can you guarantee a 90+ PageSpeed score?
No, and be careful with anyone who does. Your score also depends on your hosting, your third party scripts and your content. Send me your URL before you order and I will run the test, tell you the realistic number I can reach, and then hit it.
3. What counts as one page?
One unique page template - your homepage, or one product page, or one blog post. Many fixes like fonts and bundle size help the whole site anyway, but I only test and promise results for the page you choose.
4. Will this break my design or layout?
That is the real risk with speed work, so I check for it every time. After the changes I compare each page against how it looked before, on both desktop and mobile, and I test that forms and buttons still work.
5. What access do you need?
Your repository, and how to run the project locally with any environment variables it needs. If you deploy on Vercel or Netlify I can work from a preview branch, so your live site is never touched until you approve.
6. My hosting is slow. Can you still help?
Partly. I can cut down the work your site does, but I cannot make a slow server fast. If hosting is the real bottleneck I will tell you in the first message and suggest where to move, instead of selling you a fix that will not work.
7. Will my site stay fast afterwards?
The fixes live in your code, so yes - until someone adds a heavy image or a new tracking script. I include a short note on what to watch for, so whoever works on it next does not undo it.
