I m launching a climate data tool tomorrow (Atlas do Clima) focused on historical rainfall norms in Brazil. One thing that surprised me during the process: we managed to hit 95 Performance (mobile), 94 Accessibility, 100 Best Practices, and 100 SEO on Google PageSpeed Insights.
The catch? I didn't spend months micro-optimizing code manually.
Whenever PageSpeed flagged a bottleneck (render-blocking scripts, unoptimized assets, or DOM overhead), I fed the diagnostics directly into Gemini, iterated on the suggestions, and refined the scripts until the scores turned green.