That's the case with older BMW N54 and N55 models; with the B58, it's a better design, and it was thought that the problem was fixed. We are now realizing that it still needs to be upgraded
I say this with no disrespect whatsoever, but if you need help from the forums to tune the car, you probably should not be testing with your own car, its a very expensive “test kit.”
If I was in your situation, I would buy a custom map and learn from the datalogs to understand what changes were...