I have a 4k monitor and want to use the replay buffer to clip things, ut enabling it nerfs my framerate from a consistent 60fps down to 30-40. And if I try to set the recording resolution to 1080p, it still slows down my game. I want to play in 4k and be able to clip things, but I don't care a huge amount about the quality of those clips. What settings should I be using? I've been trying out a bunch of different ones but nothing works.