Lightning fast SSR React apps with top perceived performance and no (client side) JavaScript
summary
Shows that a Next.js site can drop client JavaScript and improve perceived speed: a full SSR Next build hits 6.6s time to interactive on a Moto G 3G, while serving only HTML/CSS falls to 2.5s in the same test. Demonstrates replacing heavy React hydration with tiny vanilla JS for a menu, highlights the uncanny valley users feel when pages look ready but aren’t interactive, and gives measured before/after numbers plus a practical migration approach.
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