Next.js 14 App Router fundamentally changes how React applications are bundled and rendered. By keeping heavy data processing on the server via **React Server Components (RSC)**, frontend bundle sizes drop dramatically. ### 1. Minimizing Client-Side Hydration Moving stateful interactions to leaf node client components (`'use client'`) ensures that structural layout HTML renders instantaneously on the server. ### 2. Image Optimization & Layout Shift Reduction Using Next.js `<Image />` components with dynamic blur placeholders prevents cumulative layout shifts (CLS) on mobile devices. ### 3. Edge Route Caching & Database Connection Pooling Utilizing Prisma ORM with NeonDB serverless driver pooling prevents connection starvation under high concurrent traffic spikes.