Prefer to explore this article with AI?
Marketing teams spend weeks perfecting copy, creative, and targeting — then lose conversions because the landing page takes too long to load. Google research shows that as page load time goes from 1 to 3 seconds, the probability of bounce increases by 32%.
Speed and conversions
Every additional second of load time costs you real money. For a page running $10,000 in monthly ad spend, a one-second delay can mean $700 in wasted budget — conversions that never happen because visitors leave before the page finishes rendering.
The relationship between speed and conversion rate is not linear. Pages that load in under 2 seconds convert at roughly double the rate of pages that take 5 seconds. After 3 seconds, over half of mobile visitors abandon entirely.
What slows pages down
Most landing page performance issues come from a small number of culprits. Understanding them helps you build faster pages from the start.
Heavy images
Unoptimized hero images and background graphics are the most common offender. A single uncompressed PNG can add 2–3 MB to your page weight. Modern formats like WebP and AVIF can cut image sizes by 50–80% with no visible quality loss.
Render-blocking scripts
Third-party scripts for analytics, chat widgets, and ad tracking often block the initial render. Each script that loads synchronously in the head adds to Time to Interactive. Deferring non-critical scripts and loading them after the page is visible makes a measurable difference.
How Blox solves this
Every page published through Blox runs through an automated optimization pipeline before going live. Images are compressed and converted to modern formats. Scripts are deferred. CSS is inlined for above-the-fold content. The result is a PageSpeed score above 90 without any manual work.
Because Blox generates the underlying code, there is no bloated page builder runtime slowing things down. You get clean, lightweight HTML that loads fast on any device and connection speed.
Measure what matters
Track Core Web Vitals alongside your conversion metrics. The three numbers that matter most are Largest Contentful Paint (LCP), First Input Delay (FID), and Cumulative Layout Shift (CLS). Google uses all three as ranking signals, and they directly correlate with how visitors experience your page.
Set up speed monitoring as part of your campaign launch checklist. A fast page today can slow down as you add tracking scripts and new sections. Continuous measurement keeps performance from quietly degrading over time.
