I’ve been re-listening to this last one a lot as well. Another thing that stands out is there needs to be more bass or something to the Your Mother part. When I stepped back and closed my eyes, I did notice the first 2 words were a bit more “empty.” So that, and on top of slowing down mother another slight bit … I think this will nail it!
For the mother part (again listening a lot) I think the “uh” sound needs to be lengthened, as well as the “er” at the end. I think there are sounds that can be used if that would help based on prior quotes if that helps.