Sorry for my bad English, but I think this could help with a patch.
The game worked nice. My setting was High and 800x600.
Then at level 9 the game started lagging for the moment you wake up.
And nothing helped, not even turning everything to very low and 640x480.
Then after completing the computer quest.
This one:
The game stopped logging, and went tu about 15 FPS. That still is a bit slow (normally its about 40 FPS) but it helped and the game is playable now. I hope a helped and once again sorry for My English.