I played the game for 10 hours so far. At first everything was fine. Later I noticed that after playing for a while the sound starts stuttering. Now it starts stuttering directly after launching the game. I got no clue what is causing it.

What I tried so far:
- reinstalling / repairing the game.
- switch languages.
- starting the game in compatibility mode for Win 7, 8 and Vista.
- locking my fps / use Vsync.

Nothing worked. Any other ideas on what to do?

I had a lot of fun with the game, but those sound issues make it unplayable...