Next.js remains the reference framework for high-performance web apps. In this guide we cover concrete strategies: Server Components by default, image optimization, self-hosted fonts, and continuous Core Web Vitals measurement.
Why performance matters
Every extra 100 ms of latency can cost conversions. For a B2B company, a slow dashboard kills adoption. For e-commerce, it's lost revenue.
Next.js levers
Use static rendering as much as possible, stream the rest, and reserve client JavaScript for real interactions.
Conclusion
A well-architected Next.js stack delivers unicorn-grade experiences - and solid technical SEO from day one.