Why Performance Matters More Than Ever
Google's Core Web Vitals have been a ranking factor since 2021. But beyond rankings, performance is user experience — and user experience is revenue.
Amazon found that every 100ms of latency cost 1% in sales. Walmart reported a 2% conversion increase for every 1 second of improvement in page load time. These aren't ancient statistics — they're more relevant than ever as user expectations continue rising.
Next.js is built for performance. But Next.js can still be slow if you don't understand which optimizations are defaults, which require explicit configuration, and which common patterns actively harm performance.
Understanding Core Web Vitals
