Bolt
performance
Slow Bundle Build Time - Build Takes Too Long
Your Bolt app takes minutes to build even with small changes. Development speed suffers with slow hot reload and rebuild times.
npm run dev or npm run build takes excessive time (over 30 seconds for simple changes).
Error Messages You Might See
Build taking over 60 seconds
Hot module replacement slow
Bundle size exceeded 500KB
Compilation timeout
Common Causes
- Too many dependencies or heavy packages being bundled
- Webpack/Next.js not optimized - missing splitting or lazy loading
- Large image assets in bundle instead of optimized
- Development mode compiling all unused code
- TypeScript checking every file on each change
How to Fix It
Analyze bundle: npm run build -- --analyze to see what's large
Remove unused dependencies: npx depcheck
Use dynamic imports for heavy libraries: import('heavy-lib').then(mod => mod.default)
Enable SWC minifier in next.config.js for faster builds
Split code: ensure lazy loading of routes and components
For dev: use --turbo flag if using Next.js 13+
Real developers can help you.
Richard McSorley
Full-Stack Software Engineer with 8+ years building high-performance applications for enterprise clients. Shipped production systems at Walmart (4,000+ stores), Cigna (20M+ users), and Arkansas Blue Cross. 5 patents in retail/supply chain tech. Currently focused on AI integrations, automation tools, and TypeScript-first architectures.
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.
Kingsley Omage
Fullstack software engineer passionate about AI Agents, blockchain, LLMs.
Yovel Cohen
I got a lot of experience in building Long-horizon AI Agents in production, Backend apps that scale to millions of users and frontend knowledge as well.
AUXLE
I am a Full Stack Developer experienced in building Websites, Web apps and Cross Platform Mobile Apps for Startups and Companies.
Caio Rodrigues
I'm a full-stack developer focused on building practical and scalable web applications. My main experience is with **React, TypeScript, and modern frontend architectures**, where I prioritize clean code, component reusability, and maintainable project structures.
I have strong experience working with **dynamic forms, state management (Redux / React Hook Form), and complex data-driven interfaces**. I enjoy solving real-world problems by turning ideas into reliable software that companies can actually use in their daily operations.
Beyond coding, I care about **software quality and architecture**, following best practices for componentization, code organization, and performance optimization.
I'm also comfortable working across the stack when needed, integrating APIs, handling business logic, and helping transform prototypes into production-ready systems.
My goal is always to deliver solutions that are **simple, efficient, and genuinely useful for the people using them.**
BurnHavoc
Been around fixing other peoples code for 20 years.
Mehdi Ben Haddou
- Founder of Chessigma (1M+ users) & many small projects
- ex Founding Engineer @Uplane (YC F25)
- ex Software Engineer @Amazon and @Booking.com
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.
Vlad Temian
15+ years shipping production infrastructure for startups. Former CTO at qed.builders (acquired by The Sandbox).
Cursor ambassador and agentic tooling builder.
I've scaled systems, automated deployments, and built observability tools for AI coding workflows. I specialize in taking vibe-coded apps from broken prototype to production-ready: fixing Supabase auth/RLS, Stripe integrations, deployment pipelines, and cleaning up AI-generated spaghetti.
I build tools in this space (agentprobe, claudebin, micode) and understand both sides: how AI generates code and why it breaks.
https://blog.vtemian.com/
You don't need to be technical. Just describe what's wrong and a verified developer will handle the rest.
Get HelpFrequently Asked Questions
What's a good target build time?
Dev mode cold start: <10s. Hot reload: <2s. Full build: <20s
How do I find what's slowing builds?
npm run build -- --analyze or npm run build --profile to see bottlenecks
Does using less packages help?
Yes significantly. Each dependency adds parsing time. Prefer lighter alternatives or inline small utilities