Nobby Nobbs

You're using pw-dev's script, right? Because I've had performance issues with that ever since the 2.9 update, I think. And also TacView and a few others. I've disabled most of my scripts because of it. You may wanna just not use it for the time being. Perhaps look into setting up using an old tablet with Helios instead? It's a much better (and more customizable) solution anyway. I use it together with Spacedesk, a free app that lets me use my tablet as a touch-screen PC monitor (through wifi or USB connection). Attached is an example of it in action.

I'd like to second this. Did you try this? Because that is exactly what fixed my stutters with TrackIR. And it also fixed low GPU usage and terrible performance in-game after I got a new graphics card. Just one thing: do it for all connected monitors if you have more than one.

Yeah, I'm not sure why this works, but I'd like to know. I think it might even work for some similar VR-related issues. In my case, I'm running a 1440p 165Hz monitor alongside a 1080p 60Hz monitor, but all display scaling in Windows is off, so you wouldn't think it's related. Could be, though. Could also be related to DLSS, as that's technically scaling the picture and I've been using it since it released for DCS. Though that doesn't explain why it also worked for TrackIR stuttering when looking around before DLSS was implemented...

Have you been encountering stuttering when looking around with TrackIR, as if the action of looking around isn't nearly as smooth as it should be - despite having your framerate capped at 60 or 120? Or have you been encountering low GPU usage and terrible performance in-game, but when you bring up the menu by pressing ESC, GPU usage and framerate returns to normal? Well, I've found a potential fix. The same thing solved both these issues for me, on two separate occasions and with two separate graphics cards (2070 and 4070 SUPER). In Nvidia Control Panel, press Adjust desktop size and position, then under the Perform scaling on: dropdown menu, select GPU. Do this for all connected monitors and click Apply. That's it. I hope this helps. I've been pulling out hair trying to fix these issues, and in both cases the culprit turned out to be the same (it had apparently reset the setting to Display scaling when I got a new graphics card, which for some reason caused low GPU usage and terrible performance when not in the in-game menu). If you have a different solution to either of these problems that worked for you, feel free to post it here. Cheers.