Miracle Kalu | Senior Software Engineer

Performance Engineering

2 مقالات

Rows of server racks in a modern data center with blue lighting

Performance Engineering·Jun 13, 2026

How we cut LCP from 4.5s to under 2.5s on a Next.js 16 editorial site

Fixing a 4.5s LCP on a Next.js 16 editorial site. We replaced a video player with a facade, fixed server rendering, and tuned Cloudflare caching. Lighthouse rose from 79 to 90s.

Next.jsCore Web VitalsCloudflare+3

Miracle Kalu

Performance Engineering·May 11, 2026

How I Reduced LCP from 5s to Under 1 Second on a 10M-User Platform

A practical breakdown of how we reduced Largest Contentful Paint from over 5 seconds to under 1 second on a high-traffic platform serving millions of users monthly.

Web PerformanceCore Web VitalsReact+2

Miracle Kalu