Recently purchased the game and by the third level I was confused as to when the tutorial would allow me to see the unit card UI. A bit of googling and I realized it was supposed to be on the bottom right of the screen.
I did also instantly notice the laggy pointer when I started the screen, but I went with hardware pointer before even starting the first mission.
I have tried all of the fixes here: https://brightrockgames.userecho.com/forums/2-war-for-the-overworld-knowledge-base/topics/1096-missing-invisible-or-laggy-ui/
I have also tried some different UI scales recommended by Noontide on this thread: http://steamcommunity.com/app/230190/discussions/0/1620599015887253031/
Windows 10 Home 64 bit (Verson 1709, Build 16299.125)
Intel i7-6700K @ 4.00GHz
16 GB RAM
GeForice GTX 980TI (updated drivers)
Campaign > 3) The Breach
Let me know if you need a save file as well.
Customer support service by UserEcho