How does website speed impact user experience and business outcomes?

Website speed impacts user experience at every stage of a visit. A slow Time to First Byte (TTFB) delays the initial page render, creating a blank screen that users interpret as broken. A high Largest Contentful Paint (LCP) means the primary content element takes too long to become visible, increasing the probability of abandonment. Layout shifts during load (measured by CLS) disrupt reading and cause accidental clicks that frustrate users.

Business outcomes are directly affected: higher bounce rates reduce the volume of users who reach conversion pages, slower form submission responses increase abandonment during checkout or enquiry flows, and poor Core Web Vitals scores suppress organic rankings that drive a significant portion of qualified traffic. For businesses running Google Ads, landing page quality score is partly determined by page experience, meaning slow pages inflate cost-per-click while reducing the traffic delivered for the same budget.