I've consistently found that I see performance issues that the AI misses. It often says "that's not going to be what improves performance, it's noise" and then I get it to do it and it's like a global 30% throughput win lol. I think a lot of performance guidance it'll be trained on is shit - I see devs consistently misunderstand performance too and downplay the impact of anything other than "IO".
Profiling is awesome, I do that. But it's also way slower. Like, 1000000% I'm with you, that's the right way. But I've seen huge gains just from reducing allocations and changing hash algorithms.
