Core Web Vitals: how to fix a slow WordPress website (step by step)
LCP, INP and CLS in plain English, plus the exact fixes that take most WordPress sites from red to green.
- Images, heavy page builders and cheap hosting cause most slow WordPress sites.
- Aim for LCP under 2.5s, INP under 200ms and CLS under 0.1 on mobile.
- Remove plugins you don’t need before adding a caching plugin.
The three numbers that matter
LCP measures how fast the main content appears, INP how quickly the page responds to taps, CLS how much the layout jumps. Google uses all three as ranking signals, measured on real mobile users.
Speed & security service →Fix images first
Convert images to WebP, size them to the space they fill, lazy-load anything below the fold and preload the hero image. This alone often halves load time.
Cut plugins and scripts
Audit every plugin, remove duplicates, and delay chat widgets, pixels and sliders until the user interacts. Each extra script costs mobile users time.
WordPress maintenance checklist →Hosting and caching
Move off overcrowded shared hosting to a good cloud or LiteSpeed host, enable page caching and a CDN, and use PHP 8.2 or newer.
Hosting & server management →Measure, then monitor
Test with PageSpeed Insights and Search Console’s Core Web Vitals report before and after. Re-check monthly — a single new plugin can undo the work.
Frequently asked questions
01What PageSpeed score should I aim for?
90+ on mobile is achievable for most business sites built cleanly.
02Does Elementor make sites slow?
It can, but with good settings and hosting Elementor sites can still score 85–95.
03How much does speed optimisation cost?
Most WordPress speed fixes cost ₹8,000–₹15,000 one-time.
