Reply to Clicking and popping problem using Launchpad with Traktor

hey guys,

so i have my launchpad custom mapped to my needs with led's and everything. the problem is when 2 decks are playing at once or even when im cueing up the next song on the other deck i get this awful clicking and popping noise every time i push the button that just ruins everything and im not sure what's causing it and how to fix it. im believeing it has something to do with latencey or maybe im not using a usb 2.0 port? idk i would really appreciate some help and advice on how to eliminate the clicking and popping. thanks