Site speed (Core Web Vitals)

The loader measures LCP, INP and CLS from real visitors on a 25% sample of page views. Results appear in Store intelligence → Site speed as 75th-percentile values per page type and device.

Targets: LCP ≤ 2.5 s, INP ≤ 200 ms, CLS ≤ 0.1. When an important page type misses them, the analyst raises a speed fix. Speed usually matters more than copy tweaks, so fix it first.