Core Web Vitals — Largest Contentful Paint (LCP), Interaction to Next Paint (INP), and Cumulative Layout Shift (CLS) — remain Google ranking factors in 2026. The thresholds haven't changed. What's changed is that more sites are slow than ever, because most small business sites are built on bloated WordPress themes or page builders that ship two megabytes of JavaScript before the user sees anything.
What changed and what didn't
We audited forty-seven Chicago small business sites in Q4 2025. Thirty-nine of them were failing at least one Core Web Vital. The median LCP was over four seconds. Google considers anything over 2.5 seconds "poor."
The three fixes that always work
Fix one: compress and modernize images. Convert everything to WebP or AVIF, serve responsive sizes, and lazy-load anything below the fold. Most sites we audit ship hero images at 3000 pixels wide on a viewport that's 400 pixels wide. That's a free thirty to fifty percent LCP improvement.
Fix two: defer non-critical JavaScript. Most page builders inject analytics, chat widgets, popup tools, and ad pixels in the head, blocking the main render. Move them to the footer or load them with defer.
Fix three: eliminate layout shift. Set explicit width and height on every image. Reserve space for embeds and ads. CLS is the cheapest of the three to fix and the easiest to ignore.
Why this is the cheapest ranking lift
Most of our small-business CWV fixes take a single developer day. The ranking lift, in our data, averages four to seven percent of organic traffic within sixty days. That's the kind of return per hour you almost never see in SEO.