Trouble when using active moniters/firepod

[worldendparty]

I enjoy using my firepod/samson 65a active moniters when I'm listening to music or playing video games because I was told that the firepod acts like your sound card and they have better sound quality than my regular speakers/soundcard... But randomly in the middle of my game or song the speakers will go crazy giving a sort of delayed/chopped/random noise sound to whatever I'm listening to. This usually happens when I'm running more than just the music or game. I have the latency set to 18 m/s and usually when i refresh it by changing it to 12 then back to 18 it works fine. Are active moniters/firepod just not meant for anything other than sound recording or is there something I can change to make them work nicely?