Trying to get Nexigo 970p 4k webcam to display in Vmix. First I couldn't get past this vmix error message: "Insufficient system resources exist to complete the requested service."

Then I shut down my browser and I could set the camera to 4k resolution, but it is jittery as heck. How much memory, etc is needed to run a 4K webcam? Yes, I'm using usb 3.

Here's what I have now:

My PC:
Windows 10
Processor Intel(R) Core(TM) i7-10700 CPU @ 2.90GHz, 2904 Mhz, 8 Core(s), 16 Logical Processor(s)
Installed Physical Memory (RAM) 32.0 GB

Graphics
Geoforce gtx1050
Total avail vid mem 20gb
Dedicated vid mem 4gb

Any suggestions, solutions very appreciated.

Thanks,

RJ