Audio crackling or popping on usb razer headset.

I am playing on PC and since patch 1.03 have run into a few issues, performance is worse in some areas, the framerate will drop by at least 50%, but it usually doesn't last long. But the main issue is I just started chapter 8 and went back to Engineering to work on one of the side quests that requires Level 3 Security Clearance. I walked into the control room, the main one on the Engineering Deck with the Store and Save Station. I was attacked by a slasher and two pregnant's, after killing the second one my sound cut out, just in the game though everything else still had sound. I went to exit the game and it froze and forced me to reboot.