I also upgraded Wednesday/Thursday this week. I had quite a bit of trouble because I installed Mojave from USB over my High Sierra installation (which upgraded perfectly, and I'm on APFS now) but that also left a lot of kexts in /L/E and /S/L/E that were meant for High Sierra (such as IntelGraphicsFixup.kext). That, and a few other random issues/mistakes on my end made process much harder than it should have been.
@namaman: Going into System Preferences -> Trackpad (NOT MOUSE) and setting the track speed to max changes the trackpoint point as well and might help. It still needs a lot of work.. the windows drivers properly smooth the movement.. and for some reason when we move to fast (especially when scrolling) the direction reverts and glitches out.
I might try to dive into VoodooPS2Controller again and look for a fix at some point, but I don't know when I will find time to do that or write a proper Mojave guide.