Ultrakill usually runs pretty fine without any major issues but when i start recording on obs my fps drops and starts to become inconsistent. Any way on how to fix this without hurting video quality?

happens to me too, idk why maybe we should use psx settings

I repost this a lot in the ULTRAKILL Discord and the people I've given this video to have always said it helps, so I'll post it here too. Keep in mind that you don't have to record at super high framerates because that increases your file sizes drastically.

EDIT: Adding on to this, you'll want to minimise OBS into your system tray. I find that also helps a lot.