(FullSpeed) 60fps yesterday, today only 30fps?? PLEASE HELP

[xMr69M3x]

I've tried all the frame limits. Any limit lower or higher than 60 slows down the game. Audio limit, the game still runs 30fps 60vps 100%. Auto stutters at 10-20fps. Checking limit by fps slows down the game and static audio occurs.

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