Technical performance engineering and Core Web Vitals optimization for comoimportarmicoche.es.

Achieved 92+ performance scores on mobile alongside 100/100 ratings in SEO, Best Practices, and Accessibility on a live production WordPress site by streamlining front-end asset delivery and eliminating backend execution bottlenecks.

Key Engineering Highlights: • Asset Optimization: Minified, combined, and deferred non-critical CSS/JS, significantly reducing render-blocking resources and critical path latency. • Next-Gen Media Pipeline: Implemented WebP image conversion, explicit aspect ratio dimensions to eliminate Cumulative Layout Shift (CLS), and native lazy-loading. • Clean Architecture: Optimized dynamic database queries and custom PHP scripts to maintain near-instant Server Response Time (TTFB) without relying on heavy caching plugins. • Core Web Vitals Targets: Focused on Largest Contentful Paint (LCP) and Interaction to Next Paint (INP) to deliver sub-1.5s real-world loading times on mobile devices.

Yeah, this was a cold run in PSI. The DB cleanup was actually huge for TTFB—dropped uncached server response under 200ms, mostly by clearing bloated wp_options and fixing custom loops. Caching handles repeat hits, but the backend fix was the main win.

Some of you saw the Spotify prototype I shared a couple of weeks ago. A few days later, Frank Bach tweeted about wanting Spotify to remember the album he was on when he jumps to a podcast.

So I prototyped it (React + Motion). The album waits behind the podcast, and one tap takes you back to where you were. Try it here: https://uzookafor.com/two-streams/

Nice one man