Common Issues performance

My AI-Built App Is Really Slow

Your app takes forever to load, pages are slow to navigate, or actions (like saving data or loading lists) take several seconds. It was fine at first but got slower as you added more features.

Common Causes

  • No pagination — the app loads all data at once instead of in chunks
  • Missing database indexes on commonly queried columns
  • N+1 query problem — the app makes hundreds of individual database calls instead of one
  • Large unoptimized images loading on every page
  • Unnecessary re-renders in React causing the UI to lag
  • No caching — every page load fetches everything fresh from the database

How to Fix It

  1. Open browser Network tab and see how many requests are made and how long they take
  2. Add pagination to any list that could grow beyond 50 items
  3. Optimize images — compress them and use lazy loading
  4. Check the database for missing indexes on columns you filter or sort by
  5. If the API is slow, check how many database queries each endpoint makes

Real developers can help you.

Simon A. Simon A. I'm a backend developer building APIs, emulators, and interactive game systems. Professionally, I've developed Java/Spring reporting solutions, managed relational and NoSQL databases, and implemented CI/CD workflows. Omar Faruk Omar Faruk As a Product Engineer at Klasio, I contributed to end-to-end product development, focusing on scalability, performance, and user experience. My work spanned building and refining core features, developing dynamic website templates, integrating secure and reliable payment gateways, and optimizing the overall system architecture. I played a key role in creating a scalable and maintainable platform to support educators and learners globally. I'm enthusiastic about embracing new challenges and making meaningful contributions. Jen Jacobsen Jen Jacobsen I’m a Full-Stack Developer with over 10 years of experience building modern web and mobile applications. I enjoy working across the full product lifecycle — turning ideas into real, well-built products that are intuitive for users and scalable for businesses. I particularly enjoy building mobile apps, modern web platforms, and solving complex technical problems in a way that keeps systems clean, reliable, and easy to maintain. MFox MFox Full-stack professional senior engineer (15+years). Extensive experience in software development, qa, and IP networking. David Olverson David Olverson Solo dev shipping production apps with AI-assisted development. I specialize in rescuing broken Lovable/Bolt/Cursor builds and taking them to production. 10+ apps shipped including SaaS CRMs, gaming platforms, real estate tools, and Discord bots. Stack: Next.js 16, TypeScript, Tailwind CSS, FastAPI, PostgreSQL, Prisma. I use Claude Code with 50+ custom skills for rapid delivery. Average turnaround: 2-4 weeks from broken prototype to production. Daniel Vázquez Daniel Vázquez Software Engineer with over 10 years of experience on Startups, Government, big tech industry & consulting. Tejas Chokhawala Tejas Chokhawala Full-stack engineer with 5 years experience building production web apps using React, Next.js and TypeScript. Focused on performance, clean architecture and shipping fast. Experienced with Supabase/Postgres backends, Stripe billing, and building AI-assisted developer tools. ISHANTDEEP SINGH ISHANTDEEP SINGH Senior Software Engineer with 7+ years of experience in React, JavaScript, TypeScript, Next.js, and Node.js. I’ve also worked as a tech lead for startups, owning end-to-end technical execution including architecture, development, scaling, and delivery. I bring a strong mix of hands-on coding, product thinking, and technical leadership, and I’m comfortable building products from scratch as well as improving and scaling existing systems. AUXLE AUXLE I am a Full Stack Developer experienced in building Websites, Web apps and Cross Platform Mobile Apps for Startups and Companies. Nam Tran Nam Tran 10 years as fullstack developer

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Frequently Asked Questions

The app was fast at first but now it's slow. Why?

Usually because the database has grown and the app wasn't built with pagination or indexing. AI tools rarely optimize for scale.

Can a developer speed up my AI-built app?

Yes. A developer can add pagination, optimize queries, add caching, and compress assets. These are standard performance fixes.

Can't fix it yourself?
Real developers can help.

You don't need to be technical. Just describe what's wrong and a verified developer will handle the rest.

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