Web Development, WordPress Tips 07 Jun 2025

How to Improve Your WordPress Site Speed and Pass Core Web Vitals

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Writen by Aditya

Viewed 5 min read

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Googleโ€™s algorithms in 2025 prioritize UX, mobile responsiveness, and site speed more than ever. If your WordPress site is:

  • Loading slow
  • Failing Core Web Vitals (LCP, FID, CLS)
  • Taking more than 2.5s to become interactive

…you’re losing rankings, conversions, and revenue.

๐Ÿ’ก 53% of users abandon sites that take more than 3 seconds to load.

Letโ€™s fix thatโ€”step-by-step.


๐Ÿ” What Are Core Web Vitals?

Googleโ€™s Core Web Vitals are three key metrics:

  • Largest Contentful Paint (LCP): Measures load speed (should be <2.5s)
  • First Input Delay (FID โ†’ INP): Measures interactivity (should be <200ms)
  • Cumulative Layout Shift (CLS): Measures visual stability (should be <0.1)

โš™๏ธ 1. Use a Fast, Lightweight WordPress Theme

Your theme controls layout, style, and performance.

๐Ÿ”ฅ Recommended Fast Themes:

  • GeneratePress
  • Astra
  • Kadence
  • Blocksy

โœ… All are optimized for Core Web Vitals and use minimal bloat.


๐Ÿš„ 2. Install a High-Performance Caching Plugin

Caching reduces server load and makes your site blazing fast.

Top Plugins for 2025:

  • WP Rocket (best overall)
  • LiteSpeed Cache (for LiteSpeed servers)
  • FlyingPress (lightweight & effective)
  • W3 Total Cache (developer-friendly)

โœ… Ensure you enable:

  • Page caching
  • Browser caching
  • Object caching (Redis or Memcached if possible)

๐Ÿงน 3. Optimize Images Properly

Heavy images kill your performance.

โœ… Do this:

  • Use next-gen formats (WebP, AVIF)
  • Resize before uploading
  • Compress with ShortPixel or Imagify
  • Enable lazy loading

๐ŸŒ 4. Use a CDN (Content Delivery Network)

A CDN speeds up content delivery worldwide.

Best CDNs for WordPress:

  • Cloudflare (free + performance + security)
  • Bunny.net (ultra-fast and affordable)
  • KeyCDN (developer-friendly)

๐Ÿ“‰ 5. Reduce Server Response Time (TTFB)

A slow server = slow site, even with optimization.

โœ… Improve it with:

  • Managed WordPress hosting (like Cloudways, Rocket.net, or Kinsta)
  • Use PHP 8.2+
  • Use object caching (Redis)
  • Optimize database with WP-Optimize

๐Ÿงฑ 6. Remove Unused Plugins, CSS & JavaScript

Every extra line of code slows your site.

โœ… Steps:

  • Deactivate/delete unused plugins
  • Use Asset CleanUp or Perfmatters to remove unused scripts
  • Enable delay JS execution

๐Ÿ–ผ๏ธ 7. Fix Cumulative Layout Shift (CLS)

CLS errors frustrate users. Itโ€™s usually caused by unstyled fonts, ads, or images loading late.

โœ… Solutions:

  • Add image/video width & height attributes
  • Use font-display: swap
  • Avoid injecting ads without space

๐ŸŽฏ 8. Replace FID with INP & Improve Interactivity

FID is now replaced with INP (Interaction to Next Paint).

โœ… Tips:

  • Minimize JavaScript usage
  • Avoid long tasks
  • Load third-party scripts async
  • Reduce animation dependencies

๐Ÿ“Š 9. Use PageSpeed Insights + Lighthouse + Web Vitals Extension

โœ… Tools to Monitor:

  • Google PageSpeed Insights
  • Lighthouse Chrome Tool
  • Web Vitals browser extension (real-time analysis)

Look for:

  • LCP < 2.5s
  • INP < 200ms
  • CLS < 0.1
  • FCP < 1.8s
  • TTFB < 500ms

๐Ÿ“ฆ Bonus: Plugins That Help You Pass Core Web Vitals in One Click

PluginPurpose
WP RocketCaching, delay JS, minify
ShortPixelImage optimization
PerfmattersScript management
FlyingPressCDN, lazy load, performance
Asset CleanUpRemove unused code
WP-OptimizeDatabase + cache

๐Ÿ“ˆ Final Thoughts: Ranking High in 2025 = Fast + Stable + Optimized

To dominate rankings and be featured in AI Overviews, your site needs to:

โœ… Load fast on mobile
โœ… Score 90+ in Core Web Vitals
โœ… Deliver great UX
โœ… Use clean code and modern architecture


๐Ÿš€ Need Help? Get Your Speed Optimized by Experts

At Tech Contributors, we help:

  • WordPress websites pass Core Web Vitals
  • Improve rankings and conversions
  • Deliver lightning-fast user experiences

๐Ÿ‘‰ Get a Free Speed Audit Now

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