The Web Performance "advent" is back! On the first day we have Noam (@nomster.bsky.social) with a bit of a wake up call (optimistic too!)
https://calendar.perfplanet.com/2024/goodharts-law-in-action-3-webperf-examples/
https://calendar.perfplanet.com/2024/goodharts-law-in-action-3-webperf-examples/
Comments
Another example similar to Case 1 was/is delaying the download of JS files until user interaction in order to improve former Core Web Vitals metric FID and boost Lighthouse scores.
While this technique can yield good UX in some cases, I've seen it misused intentionally.