I Cut My Next.js + Supabase App Load Time by 73% - Here Are the 5 Techniques That Actually Worked

Last month, our SaaS dashboard was embarrassingly slow. 4.2 seconds to load the main page. Users were complaining. Conversion rates were tanking.

Today? 1.1 seconds. 73% faster.

Here's exactly what worked (and what didn't).

The Problem: Death by a Thousand Database Calls