Overclock Glitching

[Linus_is_a_Badass]

I overclocked my monitor to 75hz from 60 in the NVIDIA Control Panel, and it all works until I tab into CS:GO with VSYNC on for example. Then I see it shows it switched to the default 60 on my second monitor where I have it open. And it shows 60 FPS on my counter in the game. When I close it, the monitor automatically overclocks again. Why isn't it staying overclocked with my game open? Checking it out in more detail, it happens to any game I fullscreen. If I run it in the native resolution but not fullscreen, it's 75hz. So I guess the better question is why does fullscreening bork it?

[yuh25]

Not sure if they've changed it but when I overclocked mine a while ago I had to set it in the display adapter properties to keep it overclocked. 

 

[joshuawi99]

Disable Vsync and I guess you can set your monitor refreshrate also in CSGO

[Linus_is_a_Badass]

The Vsync was just to verify what the monitor was running at. And I don't see where I can set it to only run at the highest.  It was set to 80 in the display adapter.

[Linus_is_a_Badass]

CRU seems to be working. I don't really understand all the fancy talk in it though, so should I just make the timing "Automatic: LCD Native" and then change the clock speed from there? Would that make it so that only the refresh rate went up without sacrificing anything else? EDIT: And should I leave interlaced off?

[Linus_is_a_Badass]

Then going  to https://www.testufo.com/ after any overclocking shows it stuttering a lot.

[Linus_is_a_Badass]

Is it because I'm using HDMI on the LG Ultrawide? (2560x1080) or is it because it doesn't overclock? The monitor is an LG 29um68-p and it's advertised as being 75HZ.