Performance / Core Web Vitals, which is faster in 2026?

There is no universal 2026 speed winner without a representative implementation and measurements. Compare mobile product, category, search, cart and checkout journeys with the intended theme, apps, images and tracking. Use field LCP, INP and CLS where available, and lab tests to diagnose a specific problem. Record device and network conditions when comparing tests. Platform branding, a stock-theme score or a single homepage result does not establish the experience your customers will receive.

Official references: Google Web Vitals guidance.