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I will optimize and improve your frontend performance
Johan S
About this gig
Is your React application slow, unresponsive, or taking too long to display its content?
I can investigate frontend performance issues and make focused improvements to help your application load and respond more efficiently.
What I can help with
- React component rendering improvements
- Unnecessary re-renders
- JavaScript and frontend code optimization
- Image and asset loading improvements
- Component and bundle optimization
- API-driven frontend loading behaviour
- Responsive interface improvements
- Core Web Vitals investigation and targeted improvements
My approach
- Review the affected pages and performance concerns.
- Identify potential frontend bottlenecks.
- Recommend practical improvements.
- Implement the agreed optimization.
- Compare relevant results before and after the changes.
What you'll receive
- Focused frontend performance improvements
- Cleaner and more efficient code
- Testing of affected pages and components
- A summary of changes and relevant performance findings
Important: Results depend on the existing application, hosting environment, backend response times and third-party services. I do not promise a particular PageSpeed score or loading time without first assessing the project.
Contact
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Get to know Johan S
Johan S
Frontend Developer
- FromSouth Africa
- Member sinceFeb 2026
- Avg. response time16 hours
Languages
Afrikaans, English
I'm a Frontend Developer specializing in React, JavaScript & TypeScript.
I help fix frontend issues, improve existing applications and build clean, responsive user interfaces.
How I can help:
- React, JavaScript, TypeScript bug fixing
- Frontend troubleshooting & debugging
- Responsive website and UI improvements
- API integration & functionality
- React component improvements & cleanup
- GitHub Actions & CI workflows
I focus on understanding the problem before changing code, providing practical solutions, testing the affected functionality and communicating clearly throughout the project.
Other Website Maintenance Services I Offer
FAQ
Q: What does the basic performance audit include?
A: I review one page of your website, analyze speed, Core Web Vitals, Lighthouse scores, and provide actionable optimization recommendations.
Q: Will you fix all performance issues on my website?
A: I optimize 1–2 bottlenecks for Standard and provide full frontend performance improvement in Premium. Additional issues can be handled via gig extras.
Q: Do you need access to my website?
A: Yes, I’ll need temporary access to your React frontend and hosting environment to safely test and implement performance improvements.
Q: Can you improve my Lighthouse score for mobile and desktop?
A: Absolutely! I optimize both mobile and desktop experiences to enhance Core Web Vitals and overall UX.
Q: How long does it take to see improvements?
A: Basic audit is delivered in 2 days, optimization depends on the package (2–4 days) and milestone workflow can speed up complex tasks.
