SSR Migration Under High Load: Real-World Lessons in Building Ultra-Fast Platforms

High traffic turns frontend decisions into scaling decisions. In this session I’ll share a migration playbook we used to modernize a high-load legacy CSR web platform while keeping delivery moving: how to identify the true causes behind slow LCP/TTI, how to fine tune SSR to keep it under 2s and comparison of modern approaches. You’ll get concrete patterns (and anti-patterns) for caching, streaming, performance budgets, and web vitals — plus a decision framework for choosing between tuning your current stack vs adopting a new one.