I just got a new K57 Keyboard & Harpoon mouse bundle for my HP Omen laptop and started having this issue. Previously, I had iCue 3.something installed with my Dark Core mouse and didn't have this problem. Removed the 3.something verision and installed iCue 4.16.194 for the new hardware and it started. I updated firmware for both the keyboard, mouse, checked for system updates, and windows updates to no avail.
Thank you so much for the fix! I renamed the .exe file to .dumb after killing the service in Task Manager and no more audio stuttering!