Fantastic
This is by far the best app to use on Windows to make your iPad into a secondary monitor in my experience. I’ve tried 4-5 different ones and this has the best performance to cpu/usage of any of them. It has very little, if any, lag, and compared to other apps like duet display, it’s noticably less lag. The only issue I’ve had is that, in chrome, I couldn’t stream HBO and some other streaming services, but using firefox fixed that. So I can highly recommend this. I use it every day and I’m very satisfied.