Thank you Sling380
What sort of GPU are you using to drive all of those screens. I have a 3060ti and had to downgrade my main monitor from 1440 Ultrawide to 1080 wide, in order to achieve more than about 15FPS when I use POPM with two 7" touch displays? Trying to find a way round that without spending lots of cash.
Try using NVidia Image Scaling on your 1440p monitor, you can keep the resolution at 1440p but set the NIS to 1080p. That would help achieve more FPS without spending money.
I use it at 4k resolution on a 3060(non ti) 12gb and it works really well. Use it along with DLSS in DX12 mode and it should minimise FPS loss while popping out panels.