Core Web Vitals Audit & Fix
Comprehensive LCP, FID/INP and CLS audit with prioritised remediation — we identify exactly what is killing your scores and fix it.
Transform a slow WordPress site into a 90+ Lighthouse performer — Core Web Vitals passing, higher rankings, and better conversion rates.
Share your project details — a senior engineer responds within 4 hours.
Independently audited, certified and built to standards you can check

WordPress site speed optimization fixes Core Web Vitals failures — slow LCP, high INP, and layout shift — through image compression, caching, CDN setup, database cleanup, and plugin audits. Codazz targets 90+ Lighthouse scores on staging first, then deploys with rollback plans so production stays stable.
Comprehensive LCP, FID/INP and CLS audit with prioritised remediation — we identify exactly what is killing your scores and fix it.
Batch conversion to WebP/AVIF, responsive image srcsets, lazy loading implementation and proper width/height attributes to eliminate layout shift.
Redis object caching, full-page caching via WP Rocket or W3 Total Cache, browser caching headers, and Varnish configuration for enterprise sites.
WordPress database cleanup — remove post revisions, transients, spam comments — plus slow query analysis and indexing for large tables.
Cloudflare or BunnyCDN integration with proper cache rules, asset minification, HTTP/2 push, and edge caching for global audiences.
We audit every installed plugin for performance impact, identify conflicts and bloat, replace heavy plugins with lightweight alternatives.
Our Work
200+ products shipped across fintech, healthcare, e-commerce, and SaaS — built to scale, designed to convert.

Web Design
A marketing site for an interior design studio, rebuilt on Next.js to load fast on mobile and convert visitors into enquiries.

Healthcare
A patient management platform handling scheduling, records and clinician-patient messaging for a healthcare provider.

E-Commerce
A fitness e-commerce storefront built on Next.js with Shopify as the commerce backend and Stripe handling payments.

Logistics
A delivery management platform with live vehicle tracking, route planning and customer-facing shipment status.

Logistics
A freight management platform for an established trucking operator, covering load tracking and job records.

SaaS
A multi-tenant SaaS platform that aggregates business reviews across sources and surfaces them in one dashboard.
We run comprehensive speed tests (Lighthouse, WebPageTest, GTmetrix) across multiple pages and devices to establish a performance baseline and identify the biggest impact fixes.
All findings are ranked by potential performance gain vs implementation effort. We focus on the 20% of fixes that deliver 80% of the performance improvement first.
Systematic implementation of fixes on a staging environment — image optimization, caching, code minification, render-blocking resource elimination, font optimization and more.
Post-implementation testing across devices and real user scenarios, Core Web Vitals verification, and ongoing monitoring setup with alerts for performance regressions.
Everything you need to know about our WordPress site speed optimization services.
Ask our teamCommon culprits include unoptimized images (often the single biggest factor), too many plugins (especially page builders), no caching configured, cheap shared hosting, unminified CSS/JS, render-blocking scripts, and a bloated database full of post revisions and transients. Most WordPress sites have multiple issues stacking on top of each other.
Google considers 90+ a "Good" score. For most business sites, we target 90+ on desktop and 75+ on mobile (mobile is harder due to smaller CPU budgets). More importantly, we focus on Core Web Vitals: LCP under 2.5s, INP under 200ms, and CLS under 0.1 — these are the metrics that directly influence Google rankings and user experience.
If your audience is spread across multiple regions — yes, absolutely. A CDN caches your assets at edge locations globally, meaning a user in London gets served content from a London server rather than your origin in Sydney. For single-region audiences, a CDN still helps with DDoS protection, asset optimization and reduced origin load.
We perform all optimization work on a staging copy of your site first, never on production. Each change is tested before the next is applied. We have a rollback plan at every step. In 5+ years of speed optimization work, we have never had an optimization cause an unrecoverable issue on a production site.
We convert all images to WebP (with AVIF for supporting browsers), compress them with quality settings tuned to be imperceptible to the human eye, implement responsive srcsets so mobile devices download smaller files, add proper lazy loading, and set explicit width/height attributes to prevent layout shift. For large sites, we automate this via Cloudflare Images or a custom pipeline.
Most sites are optimised within 1–2 weeks: audit and baseline (days 1–2), staging implementation (days 3–8), QA and production deploy (days 9–10). Complex WooCommerce or multi-site setups may need 3 weeks.
Let's transform your WordPress performance and hit 90+ Lighthouse scores that drive real business results.