I've been using LS for 6 months, never had issues. Starting 2 days ago, LS has drastically lowered my framerate. I will run a game at 90 fps, and then with LS on, LS will say my base is actually ~20, then say it outputs 165 fps despite the game now running at ~15 fps.
I have made sure all overlays are turned off (Steam, AMD, Discord), activated Windows because I was told that could cause issues, followed guides but nothing has worked. I haven't changed any settings in those 6 months so I'm not sure why it won't work.