A major update on the problem
I’ve managed to pull off lil’something and track down the issue.
Here is what my problem usually looks like:
(go to 0:20)
So here’s what I did.
I ran the game and left it in menu, minimized the game and got to Task manager.
It showed that the game loads up ~25% of my CPU
Then I’ve waited until the game froze (still watching Task manager) and something happened - it claimed that the game had dropped CPU usage to 0% and that “Dirty Bomb isn’t responding” for roughly 7 seconds. I also heard a sudden change in my CPU fan sound too, but not distinctive enough to tell whether did it slow down or speed up actually.
P.S. I don’t have any anti-virus software installed. I have Skype and music player (AIMP) running all the time; other processes seem minor to me.
Conclusion
My CPU stops working for a duration of roughly 7 seconds once in a while running this game. send help pls.