Progress! So though I was sure I was getting the issue through my monitor, after reverting to an older driver, and seeing the fps tank(and the issue persist), I went back to the latest driver to see if something else I had done had messed with the FPS i was getting. When I did this, sound defaulted to coming out of the monitor (connected via displayport cable) and I do not appear to be having the issue.
So it looks like the issue is a USB driver then? Or some kind of conflict between the USB and something else? For USB i've got 2 that stick out
ASMedia USB 3.1 eXtensible Host Controller - 1.10 (Microsoft)
Intel(R) USB 3.0 eXtensible Host Controller - 1.0 (Microsoft)
Both are the latest versions, and I can't seem to replace them with anything else, every time I uninstall them, they auto-reinstall the same driver after a restart.
I have the option to disable the ASmedia controller, which I have tried and hasn't helped the issue at all, but no option to disable the Intel one. Since I can disable the ASMedia one and still have the issue I think that would point at some kind of issue or conflict with the Intel one? I've tried every USB port in the machine and problem persists on all.
Thoughts on what to do next?
*Edit: To clarify my ramblings a bit, still have the issue with anything connected through USB or audio port (my speakers and headset) however sound through my monitor via display port cable appears to not have an issue