No game is running at 30 frames per second.
No game is running at 30 frames per second.
GO, despite only 30 frames per second. Your PC appears to be running very slowly lately. What could be causing this?
Running at 144hz means your frequency is set to 144 cycles per second.
VSync might be active, but it seems unlikely they offer a 30Hz display refresh option. None of the manufacturers' sites I checked mention this feature.
Have you explored a Windows recovery method? Or simply powering it off and on? You might be amazed at how many issues resolve with just that.