Multi monitor OBS rendering issue

Im wondering if someone could help me. I just reinstalled windows and now my OBS is cooked. Previously I had to do something to fix this I just can't remember what it was. Essentially, I have multiple monitors: 2x 144hz and 1x 240x. I play on the 240hz and OBS is on one of the 144hz ones. When I play a game at above 144 FPS, OBS then starts to miss a ton of frames due to rendering lag. I forget what I did to fix this in the past. Previously I was able to play 200-300 FPS with no issues in OBS. any ideas?
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