Reply to Traktor audio lag

Hi there
I'm having some truble with my traktor pro connecting to midi yoke ive just installed cuz i'm getting an ipad soon with touchosc on it, so i'm trying it out on my iphone, but it seams that midi yoke is jaming the output signal or something on my nov lunchepad, so i get quite alot of audio latancy(lag)
So is there a way of fixing this, i have searched everywhere but with no luck, this is driving me nuts.

so please help

my setup is:

i5 core intel PC 4gb ram (and so on)
A&H Xone 4D
Novation lunchepad