---
title: "Product Recommendation Speed: 56.2% vs 48.4% Pass CWV - PageSpeed Matters"
url: https://www.pagespeedmatters.com/resources/data-studies/product-recommendation-speed
description: "Top 1M stores with a product recommendation engine pass Core Web Vitals 56.2% of the time against 48.4% without, despite carrying about twice the JavaScript, though most of the gap comes from platform mix."
lang: en
---

Product Recommendation Speed: 56.2% vs 48.4% Pass CWV (https://www.pagespeedmatters.com/resources/data-studies/product-recommendation-speed)

Top 1M stores with a product recommendation engine pass Core Web Vitals 56.2% of the time against 48.4% without, despite carrying about twice the JavaScript, though most of the gap comes from platform mix.

CWV pass rate with vs without a recommendation engine

All stores with 56.2%

All stores without 48.4%

Shopify with 59.4%

Shopify without 57.7%

Other platforms with 37.5%

Other platforms without 41.3%

Source: PageSpeed Matters. HTTP Archive top 1M crawl, Sept 2026, mobile, CrUX p75.

Correlation only. The overall gap mostly reflects platform mix, not the tool.

Source: Product Recommendation Speed: 56.2% vs 48.4% Pass CWV - PageSpeed Matters (https://www.pagespeedmatters.com/resources/data-studies/product-recommendation-speed)