VCI-400 Latency problem?

VCI-400 Latency problem?

Hey, DJTT

I red a couple treats about this but it I don’t know if it fixes the problem.
I am using a Traktor + Ableton and has the output set to the VCI-400. But around every 45min I get some loud crackles which hold-on for 5 sec, while don’t see any high load on Traktor’s load display. Do you guys think this is a latency problem or something else I need to adjust?

Thanks,
Duros

Mac or Windows?

Mac

I’ve got a 13" MacBook Pro Retina with 2,6 GHz i5 and 8 GB ram.