By skyforbes Real-world fixes that cut load times in half, improved my Lighthouse score by 30 points, and saved me from a brutal code review.
Intro: The Code Review That Nearly Cost Me My Job
Ever failed a code review because of a 3-second LCP (Largest Contentful Paint)? I did.
Back in early 2024, I shipped a dashboard that looked great locally but tanked in production. Lighthouse screamed red — LCP was 3.7s, CLS was off the charts, and the reviewer’s comment still stings:
“This isn’t a feature. It’s a bottleneck.”
After a week of painful debugging, I discovered one small performance hack that halved the load time. That win saved the release (and my reputation).
Fast forward to 2025, performance isn’t just about happy users — it’s about passing interviews, ranking on Google, and keeping your job.
Let me share the 7 frontend performance hacks I wish I knew earlier — each one tested in real-world apps, each one with results you can measure today.
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