During normal gameplay, the sound can become incredibly delayed and stuttering. This was encountered after letting the game run for a few hours on pause, and returned to the find stuttering sound. Gameplay, controls, and graphics all appear normal, without delay or stutter, but sound is delayed several seconds and stutters.
Tabbing away from ONI, the sound and music is normal while paused, but while unpaused and tabbed away, it stutters.
Run ONI for 1-5 hours on pause, observe stuttering.