From a failing 60 to a 99 performance score

A client site scored poorly on Google's performance metrics and it was hurting rankings. I optimised it end to end until it hit 99.

Role: Performance Specialist Speed & Core Web Vitals

The challenge

The site was slow and unstable on mobile — failing Google's Core Web Vitals thresholds (LCP, CLS, FCP), which hurt both rankings and conversions.

The work involved

  • Compressed and properly sized every image
  • Set up full-page caching and asset optimisation
  • Eliminated render-blocking resources
  • Fixed layout shift (CLS) across templates

Technical highlights

PageSpeed / LighthouseImage optimisationCachingLCP · CLS · FCP

The result

  • Performance score improved from 60 to 99
  • Faster loads on real phones, not just lab tests
  • A stronger technical foundation for SEO

Why it worked

Speed is not a nice-to-have — it is a ranking factor and a conversion factor. I treat Core Web Vitals as a checklist to pass, not a report to admire: measure, fix the biggest bottleneck, measure again, until every threshold is green.

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