Jump on Win 10 talking to Jump Client on iPad - Issue with Mouse Sensitivity?

Have the Jump Desktop on my Windows 10 machine (core i7, 16 gigs RAM, nVidia 1060, SSD). Have the Jump client on my iPad Pro 12.9. Also have a Swiftpoint GT.

Connection works fine with little lag. I can use the mouse on the Windows desktop all day, no problem. Mouse works ok (if a tad sensitive) in Civ VI running on the desktop.

Problem comes when I try to launch No Man's Sky on the desktop. It is looking for you to move the pointer to one of two choices and then hold down the middle mouse button. Problem is that the pointer always starts at the edge of the screen, and trying to move it "throws" it to one of the other edges. Not sure if it's overly sensitive or misreading the mouse or...

Any suggestions on what I could try/change to get this to work? Everything else works so well I'd love to be able to give this a 100% recommendation.

Thanks in advance!