WooCommerce to Shopify Speed: 26.1% to 57.6% Pass CWV

514 stores that moved from WooCommerce to Shopify went from a 26.1% Core Web Vitals pass rate to 57.6%, even though median page weight rose about 860 KB.

WooCommerce to Shopify: share of months with a good score, before vs after

CWV pass before26.1%

CWV pass after57.6%

Good LCP before31.4%

Good LCP after80.2%

Good CLS before81.4%

Good CLS after91.9%

Good INP before72.1%

Good INP after71.3%

Source: PageSpeed Matters. HTTP Archive top 1M crawls and CrUX, Sept 2024 to Sept 2026; 514 stores.

Many moves come with a redesign, so this is not the platform's effect alone.

Source: WooCommerce to Shopify Speed: 26.1% to 57.6% Pass CWV - PageSpeed Matters