Debugging main-thread JavaScript bottlenecks, yielding to the browser with scheduler.yield(), and passing CWV.
While First Input Delay (FID) only measured the initial delay of the very first click, Interaction to Next Paint (INP) observes the latency of every single user interaction throughout the entire page lifecycle.
If any click takes longer than 200ms to paint the next visual frame, your page fails Core Web Vitals, penalizing your search rank.
Fixing INP restores lost organic search traffic. Let me profile your user interactions.
Over 4+ years leading frontend architecture, refactoring monolithic web apps, and partnering with funded founders across Europe and the US.
When venture-backed founders face velocity bottlenecks or architectural gridlock, hiring an agency results in bloated decks and junior contractors. Here is my exact fractional engagement blueprint developed over 4+ years.
Read articleSpeed is not about writing messy code quickly; it is about senior architectural foresight that eliminates redundant layers and aligns engineering directly with commercial objectives.
Read articleA deep technical post-mortem of how we reduced Time to First Byte by 95.5% on a high-concurrency SaaS platform using Next.js and Redis Edge caching.
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