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You will get review your React app performance issues

Yuliia U.Status: Offline
Yuliia U. Yuliia U.
4.8
Top Rated
Preview image

Let a pro handle the details

Buy Web Application Programming services from Yuliia, priced and ready to go.
Yuliia U.Status: Offline
Yuliia U. Yuliia U.
4.8
Top Rated
Preview image

Let a pro handle the details

Buy Web Application Programming services from Yuliia, priced and ready to go.

Project details

You will get a quick React performance review focused on one page, component, or app flow.

We will check the selected part of your React, Next.js, JavaScript, or TypeScript project and prepare a short written report with the most important performance issues, possible bottlenecks, and practical next steps.

This is not a full performance optimization service. It is a focused technical check designed to help you understand why a page feels slow before investing more time or money into fixes.

My team can review common frontend performance risks such as unnecessary re-renders, heavy components, slow loading, poor state usage, inefficient API calls, large images, bundle size issues, and UI delays.

This package is a good fit if your React app works but feels slower than expected and you want a clear technical direction before the next development step.
Programming Languages
HTML & CSS, JavaScript, TypeScript
Coding Expertise
Cross Browser & Device Compatibility, Performance Optimization, W3C Markup Validation Service

What's included $50

These options are included with the project scope.

$50
  • Delivery Time 2 days
  • Number of Revisions 1
  • Number of Pages 2

Frequently asked questions

4.8
36 reviews
94% Complete
(34)
1% Complete
(0)
3% Complete
(1)
1% Complete
(0)
3% Complete
(1)

TN

Taras N.
5.00
May 27, 2026
Yuliia U.Status: Offline

About Yuliia

Yuliia U.Status: Offline
Full Stack Developer | React Developer | Node.js Developer | PM
95% Job Success
4.8  (36 reviews)
Zaporizhzhia, Ukraine - 2:20 am local time
👋 Hi, Tired of chatting with AI? Let's have a real conversation.

While AI writes the posts, cover letters, and prototypes, I'm busy turning those prototypes into products that ship and actually work.

Why you can rely on me:

✅ 9+ years in software development as MVP Developer, SaaS Developer, Full Stack Developer, React Developer, React Native Developer, Node.js Developer
✅ 41+ Upwork jobs in React, Next.js, Node.js, React Native, SaaS Development and Full Stack Development
✅ 155+ web and mobile projects delivered
✅ 20,500+ Upwork hours in React | Next.js | Node.js |React Native
✅ 75% repeat clients - partnerships lasting 6-18+ months
✅ 40+ MVPs released, typically 5-8 weeks from MVP Development to pilot launch
✅ 35+ in-house engineers, matching in 24 hours or less
✅ 2-week trial period
✅ Products we support include platforms with 5M+ daily users

My team helps companies hire in-house, CTO-approved MVP Developer, SaaS Developer, Full Stack Developer, Startup Developer, React Developer, Next.js Developer, Node.js Developer, React Native Developer, Backend Developer, Supabase Developer specialists who join fast, take ownership, and deliver production-ready software.

My goal: help you move from idea to MVP, MVP to production, and MVP to scale while saving up to 40% of your development budget.

What you can expect:

🔹 In-house engineers. Every developer is screened and CTO-approved.
🔹 Fast matching Engineer matched within 24h, with weekly demos, QA and code review.
🔹 Ownership. Our developers flag risks, improve architecture, simplify MVP scope, and drive the product toward launch.

📌 How we work: Discovery & MVP Planning → MVP Architecture → Engineer Matching → MVP Development → 2-week Trial → Weekly Demos → QA & Code Review → MVP Launch → Production Support → MVP Scaling

🚀 * MVP Developer / SaaS Developer / Startup Developer

I help founders with MVP Development, Startup MVP Development, SaaS MVP Development, Web App MVP Development, Mobile App MVP Development, AI MVP Development, Marketplace MVP Development, Prototype Development, Proof of Concept, POC Development, Product Development, MVP Launch, MVP to Production, MVP Scaling.

Strong fit if you need an MVP Developer, Startup Developer, SaaS Developer, Full Stack Developer, Startup MVP Developer, SaaS MVP Developer, Web App Developer, Product Developer, Software Developer or MVP Development Team .

🚀 React / Next.js / Full Stack

We build SaaS MVPs, dashboards, admin panels, customer portals, subscription products, marketplaces and scalable web apps as react developer, react js developer, nextjs developer, next js developer, web app developer react, full stack developer react node, full stack developer supabase react.

Stack: React, Next.js, Node.js, TypeScript, Supabase, PostgreSQL, Firebase, MongoDB, REST API, GraphQL, Stripe, OAuth, WebSockets, AWS, Vercel, Docker.

Work includes MVP Development, SaaS Development, legacy code takeover, architecture modernization, API integrations, payments, subscriptions, authentication, RBAC, multi-tenancy, Supabase RLS, production launch and Core Web Vitals.

Strong fit if you need a react developer, frontend developer react, web developer, full stack developer, mern developer, backend developer, backend engineer, SaaS Developer or MVP Developer .

📱 React Native / Mobile MVP Development

We build iOS and Android apps as react native developer, react native developer expo, react native app developer, mobile app developer, Mobile MVP Developer .

Stack: React Native, Expo, Firebase, Supabase, Node.js, TypeScript, APIs, payments, push notifications, authentication .

We handle Mobile App MVP Development, React Native MVP Development, app takeover, maintenance, App Store / Google Play releases and backend integrations .

🤖 AI MVP / AI SaaS Development

25+ AI products and features shipped: AI MVP, AI SaaS, AI chatbot development, AI agent development, RAG chatbot, copilots, AI assistants, automation

Stack: OpenAI API, Claude API, LLMs, RAG, prompt engineering, Generative AI, Python, FastAPI, pgvector, web scraping, automation

Strong fit if you need an AI MVP Developer, AI SaaS Developer, AI App Developer, AI Agent Developer or Full Stack AI Developer.

🧩 SaaS & MVP Features

SaaS MVP, Startup MVP, Web App MVP, Mobile App MVP, AI MVP, Marketplace MVP, Customer Portal MVP, Admin Dashboard MVP, Internal Tool MVP, Multi-Tenant SaaS, Authentication, RBAC, Supabase Auth, Supabase RLS, Stripe Integration, Subscription Management, REST API, GraphQL API, PostgreSQL, Supabase Development, AI Integrations, Automation, MVP Architecture, MVP Launch, MVP Scaling.**

🧩 Mixed-Stack Support

Core focus: MVP Development, SaaS Development, Full Stack Development, React, Next.js, Node.js, React Native, TypeScript, Supabase, AI.

Click "Invite" or "Hire" - I'll help you clear the MVP estimate or technical discovery phase within 24 hours or less

Steps for completing your project

After purchasing the project, send requirements so Yuliia can start the project.

Delivery time starts when Yuliia receives requirements from you.

Yuliia works on your project following the steps below.

Revisions may occur after the delivery date.

My expert will review the selected React page, component, or app flow.

We will check performance risks

We will identify the most important bottlenecks.

Review the work, release payment, and leave feedback to Yuliia.