It's just uncomfortable for me. I'm looking around for buttons mid-game and just end pressing the button I'm looking for on the controller. On shooters (if you've seen my thread from the other day, you may know what's coming) is about the same as on a console once I take up sensitivity to account for no aim assist. I'm objectively better in more cases with a controller than a m/kb. I have tried to use m/kb, but always end up ditching it for something I find more comfortable and where the buttons are laid out for me