Performance optimization isn’t structured at all. I find it amazing that without access to profilers or anything Claude is able to respond to “anything I can do to improve the speed” with acceptable results.

that's one of the problems with AI. as it can accomplish more tasks people will overestimate it's ability.

what the person you replied to had claude do is relatively simple and structured, but to that person what claude did is "automagic".

People already vastly overestimate AI's capabilities. This contributes to that.