I fly only VR and like some of us, was having problems with mouse lagging/disappearing or almost not working at all. I own a Logitech wireless Mouse/keyyboard combo.
After messing around with a bunch of settings on windows, I put all back to baseline and just plugged the mouse to an USB 2.0 (vs 3.1 that used to work fine) and that did it, as smooth as before.
On a quick note, I unistalled GEForce Experience completely and I haven’t had anymore CTDs
Hope it helps
PS: I know someone is going to ask: Intel i7-8700k @ 3.70GHz, Asus ROG Maximus Hero X, 32GB ram, GEForce GTX1080ti, 1Tb SSD M.2