Thanks a lot you both.
Not sure about the rebooting issue, but I fear it has something to do with the mouse, I had the same problem at first but thought I had fixed it (on Touchpad it works). When it comes to mouse lag, it's very weird behavior, but I remember having something like it on my Touchpad at first, fixed it by moving the touchpad scanning function a bit. Could you try the attached program for me? It reads raw values from the touchpad, I'd like if to know if the "Velocity" still lags and updates rarely or if it's fast:
I can only bribe you with a thank you in the readme.
This is how the mouse works on my Touchpad: