Whenever a fast paced action game like Devil May Cry, Prodeus, HiFi Rush or Doom have a grading system then I would feel like not continuing them as if some one is judging my performance, instead of a bar to get better.
It’s weird that this feeling never happens in a game like Hitman or Overcooked. I view them as challenges, but not grading like in DMC.
IMO, just ignore the grading system and have fun. Once you’re hooked enough and actually want to improve, that’s when you will want to start paying attention to it.