How Website Speed Impacts Ecommerce Revenue

The Speed-Revenue Connection

Research consistently shows that faster sites convert better. A 1-second improvement in load time can increase conversions by up to 7%.

LCP (Largest Contentful Paint): Should be under 2.5 seconds

FID (First Input Delay): Should be under 100 milliseconds

CLS (Cumulative Layout Shift): Should be under 0.1

Unoptimised images

Too many third-party scripts

Render-blocking CSS and JavaScript

No browser caching

Oversized hero videos

Convert images to WebP/AVIF formats

Lazy load below-fold images

Defer non-critical JavaScript

Enable GZIP compression

Use a CDN

Want a detailed speed audit? Book a free website review.

Book a free website and email audit to discover the changes that will have the biggest impact on your conversion rate.