Tried uninstalling and reinstalling with no success. I've also tried going into task manager and setting affinity to 1 core but that did nothing.
I'll reinstall again and use the earlier patch, see if that's any better.
Edit: ...still nothing.
Patch v1.01 and I've still got the same problem. I've disabled Kaspersky just in case and that didn't do anything.
Have no idea what to do from here.