Well, briefly, DSP attempts to improve SQ by using “several” manipulations. If this is on, and particularly on in several zones, it can create CPU overhead that can interrupt the music.
Your setup at present may not be able to take advantage of the manipulations, but you can test the SQ with it on and off. Don’t turn it on until your system is stable, you have a sense of what it is, and you’re willing to experiment. Some people actually regard it as a fun exercise!
Hope it stays good for you.