> Could it make harder to make a truly performant website for Chrome, because switching to better patters makes your code loose due to them being less optimized

> Could it make harder to make a truly performant website for Chrome, because switching to better patters makes your code loose due to them being less optimized in the browser? I doubt it would, great pattern aren't just good for humans, they are also much more predictable, and that's quite good for JIT compiler. If it does, I'll just refer to my last sentence which still apply: > If your usage is closer to synthetic benchmark and thus you lost close to that 30% of performance since Chrome 75, then take your real world scenario and send that to the V8 teams, I'm sure they'll be happy to consider it in the test suite.