Hi, many thanks for letting me try out this great piece of software! However, I experienced the same problem as OP after some hours playing with it and exploring the possibilities it opens up.
Let me take it from the beginning. Installed it today and it worked fine as a third monitor in my setup (see below). It was even possible to use the iPad Pro’s Smart keyboard as alternate keyboard – save a few keys like ”backspace” that didn’t work -, and the Pc’s mouse inputs were recorded great with only minimal lag.
Display settings like position and resolution could be adjusted very easily through Windows 10 display settings, to native resolution for iPad Pro 11” (i.e *very* high) and enlarging the fonts etc to 150% or so gave a great experience – perfectly clear. So far so good.
Then I realized that I could use my iPad as a remote terminal to my Windows laptop in my office, bringing the iPad along to another room sitting in the sofa. Worked just great, as long as you don’t lose track of the mouse pointer to the other monitors in the other room but that’s managable.
The idea came up to try also the Apple pencil 2, so I fired up OneNote and gave it a try. Was actually surprised that it worked quite good, ok there is a lag that makes lines less smooth and so on but it worked well enough to be very useful in, say, the remote teaching applications via Zoom etc that OP was talking about. Problem is that I got freezing and server disconnect after a couple of minutes, and when checking out the laptop in the other room it turned out that it had restarted.
Tried it twice same thing. Checked the system log and there was quite a few informational, warnings and critical messages related to this that I perhaps can relay to you but they are in Swedish.
The system config looks like this:
– Laptop is Asus TUF A15, Windows 10 v 21H1, with Nvidia’s display driver 472.12 (or 22.214.171.12412 as reported in device manager) for the graphics card. There is also integrated graphics in the Ryzen 5 4600H Cpu but there was no mention of that in system requirements, anyway it is driver version 27.20.11032.9001
– iPad Pro (11”, 2018) iPadOS ver 14.8, Apple pencil gen 2.
So in short, I find your software highly promising but felt uncomfortable continue running the server on the host machine so I disabled it for now, maybe decide to uninstall it and wait for updates.