CPU usage at 100%, GPU at 0-5% while gaming

For context, I have an intel i9 9900k, and a nvidia 4060. DSR settings are disabled in nvidia control panel, integrated graphics have been disabled in bios, pcie slot 1 has been selected in bios as the display.

Whenever I try and run Helldivers the last few days I have noticed my frames dropping super low, almost unplayably low, so I had opened task manager to look at the systems usage and noticed that my CPU is running at a constant 100% while my GPU is at 0-5% or so. I’ve gone into my BIOS and disabled the integrated graphics, and made sure that my pcie slot was selected for the display, I’ve tried disabling and re-enabling the GPU in device manager, and updating my graphics drivers and still no luck.

In addition I had noticed that on multiple games as well that my resolution was defaulting to 4k resolutions when I don’t play in 4k, probably unrelated but I’ve even gone down that rabbit hole which eventually just led me to turn off settings that are already disabled.

Does anyone have some additional ideas as to what could be causing this?