I think you are not hardcore enough. I paste entire files or 2 3 files at once and ask to rewrite everything.

Then you rewiew it and in general have to ask to remove some stuff. And then it's (good enough). You have to accept to not nitpick some parts (like random functions being generated) as long as your test suite pass, otherwise of course you will end up rewritin everything

It also depends on your setting, some area (web vs AI vs robotics) can be more suited than other