The modern web is an optimization battlefield. Even with the best intentions, websites are relentlessly getting bigger, more complex, and slower, leaving us with frustratingly limited information to diagnose speed problems. That's why the Core Web Vitals finally gave us the numbers we needed to measure actual user frustration. Yes, these metrics are important for ranking, but more critically, we can gain insight into user experience and frustration, and that makes a website worth using. This isn't a theory lecture; this is some honest advice born from experience.

We’re going to stop fiddling with low-impact fixes and jump straight into the metrics that directly impact your users’ ability to engage with your site. This talk delivers a fast-paced, practical breakdown of:

- Cumulative Layout Shift (CLS): Stopping spontaneous layout changes with advanced CSS techniques that ensure stability.
- Largest Contentful Paint (LCP): Fixing janky, broken page loads by exploring resource prioritization required for fast initial rendering.
- Total Blocking Time (TBT): Addressing main thread blockage by finding and fixing the JavaScript that is locking up your user’s browser.

This high-energy session is aimed at any developer who is ready to move past guesswork and ship better products. You will walk away with a definitive roadmap for debugging and fixing your Core Web Vitals scores, ultimately building sites that are faster and hopefully suck less.