Cursor performance

Bundle Size Increased After Cursor Refactoring

Your application's bundle size has significantly increased after Cursor refactored the code. Load times are now slow, especially on slower networks and mobile devices.

The refactored code may be importing unused dependencies or breaking code splitting.

Error Messages You Might See

High bundle size Slow initial load High memory usage Large chunk size

Common Causes

  1. Large library imported entirely instead of specific functions (lodash vs lodash/map)
  2. Code splitting disabled during refactoring
  3. Tree shaking not working due to import structure changes
  4. New heavy dependencies added without considering alternatives
  5. Asset inlining or image compression removed

How to Fix It

Analyze bundle: webpack-bundle-analyzer. Import specific functions: import {map} from 'lodash' not import lodash. Enable code splitting: splitChunks in webpack. Check for unused packages: npm ls --depth=0. Use lightweight alternatives (lodash-es vs lodash).

Real developers can help you.

legrab legrab I'll fill this later Milan Surelia Milan Surelia Milan Surelia is a Mobile App Developer with 5+ years of experience crafting scalable, cross-platform apps at 7Span and Meticha. At 7Span, he engineers feature-rich Flutter apps with smooth performance and modern UI. As the Co-Founder of Meticha, he builds open-source tools and developer-focused products that solve real-world problems. Expertise: 💡 Developing cross-platform apps using Flutter, Dart, and Jetpack Compose for Android, iOS, and Web. 🖋️ Sharing insights through technical writing, blogging, and open-source contributions. 🤝 Collaborating closely with designers, PMs, and developers to build seamless mobile experiences. Notable Achievements: 🎯 Revamped the Vepaar app into Vepaar Store & CRM with a 2x performance boost and smoother UX. 🚀 Launched Compose101 — a Jetpack Compose starter kit to speed up Android development. 🌟 Open source contributions on Github & StackOverflow for Flutter & Dart 🎖️ Worked on improving app performance and user experience with smart solutions. Milan is always happy to connect, work on new ideas, and explore the latest in technology. Alvin Voo Alvin Voo I’ve watched the tech landscape evolve over the last decade—from the structured days of Java Server Pages to the current "wild west" of Agentic-driven development. While AI can "vibe" a frontend into existence, I specialize in the architecture that keeps it from collapsing. My expertise lies in the critical backend infrastructure: the parts that must be fast, secure, and scalable. I thrive on high-pressure environments, such as when I had only three weeks to architect and launch an Ethereum redemption system with minimal prior crypto knowledge, turning it into a major revenue stream. What I bring to your project: Forensic Debugging: I don't just "patch" bugs; I use tools like Datadog and Explain Analyzers to map out bottlenecks and resolve root causes—like significantly reducing memory usage by optimizing complex DB joins. Full-Stack Context: Deep experience in Node.js and React, ensuring backends play perfectly with mobile and web teams. Sanity in the Age of AI: I bridge the gap between "best practices" and modern speed, ensuring your project isn't just built fast, but built to last. Mehdi Ben Haddou Mehdi Ben Haddou - Founder of Chessigma (1M+ users) & many small projects - ex Founding Engineer @Uplane (YC F25) - ex Software Engineer @Amazon and @Booking.com Jaime Orts-Caroff Jaime Orts-Caroff I'm a Senior Android developer, currently working at Aircall. I'm open to work in various fields! Matt Butler Matt Butler Software Engineer @ AWS 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. Taufan Taufan I’m a product-focused engineer and tech leader who builds scalable systems and turns ideas into production-ready platforms. Over the past years, I’ve worked across startups and fast-moving teams, leading backend architecture, improving system reliability, and shipping products used by thousands of users. My strength is not just writing code — but connecting product vision, technical execution, and business impact. Luca Liberati Luca Liberati I work on monoliths and microservices, backends and frontends, manage K8s clusters and love to design apps architecture rayush33 rayush33 JavaScript (React.js, React Native, Node.js) Developer with demonstrated industry experience of 4+ years, actively looking for opportunities to hone my skills as well as help small-scale business owners with solutions to technical problems

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Frequently Asked Questions

How do I measure bundle size?

Use webpack-bundle-analyzer plugin or build tools. Check npm package size with bundlephobia.com. Monitor in CI.

What's code splitting?

Splitting bundle into chunks that load on demand. Routes load when accessed. Dynamic imports: import('module').then().

Related Cursor Issues

Can't fix it yourself?
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