Hey, @suheb!

Feel free to share more details about your project, it'd help us tailor our suggestions, but some ideas to get you started:

Bundle Size Optimization

• Use <@next> /bundle-analyzer to identify large dependencies: ANALYZE=true npm run build
• Enable optimizePackageImports in next.config.js for icon/utility libraries
• Implement code splitting and lazy loading for non-critical components
• Tree-shake unused code and remove unnecessary dependencies

Image Optimization

• Use Next.js <Image> component for automatic optimization
• Images are served in modern formats (WebP/AVIF) reducing size by 25-35%
• Enable lazy loading and use sizes prop for responsive images
• Consider using a CDN for very large image libraries

Build & Deployment Speed

• Leverage Vercel's build cache (enabled by default)
• Use Turborepo for monorepos to cache and parallelize builds
• Consider enhanced build machines for large projects (up to 70% faster)
• Enable Turbopack for faster local development

Let us know how you get on!

A good way to approach this is to separate build/deployment size from runtime loading performance.

For deployment/build size:

• Remove unused dependencies.

• Check for large assets accidentally included in the repo.

• Avoid bundling server-only packages into client components.

• Use dynamic imports for heavy UI/client-only code.

• Keep generated files, uploads, and local cache folders out of the deployment.

For page performance:

• Use next/image for images.

• Compress large images before uploading them.

• Lazy-load below-the-fold components where it makes sense.

• Check bundle size with a bundle analyzer.

• Use Vercel Speed Insights or Web Vitals to see what is actually slow.

The most useful first step is usually to identify the biggest files/dependencies instead of guessing. Once you know whether the problem is large assets, heavy JS, or slow server/data fetching, the fix is much clearer.