Penumbra: Overture (Extra Laggy throughout intro and menu)

[MEMANIA]

I don't know nvidia so I can't tell just from looking at the driver number, but it's the latest yes? Maybe Re install openAL as a long shot. Could also verify steam cache (right click penumbra > local files >verify integrity of local files) but since it still happened on a non steam version that probably wont help.

Verified Cache, didn't help.

How do I go about easily reinstalling OpenAL? Just uninstall and reinstall?

The drivers are the latest to my knowledge, or at the very least only a few months or so old if they are out of date.

I just updated my drivers to version 270... this wouldn't have anything to do with the following issue:

http://support.frictionalgames.com/entry/61/

Would it? It says something about 92 version of driver stuff, and granted 270 is ahead of that but... would it still be conflicting after all this time still?