Traktor Pro sound problem when minimized?

[DroeneZ]

I'm using traktor for years now! Installed a brand new Macbook Pro 2 weeks ago.
Everything working fine, but when i minimize the Traktor Pro window to search for a track on a USB the sound gets terrible! Sounds like my latency is not correct or something.. but it's the same as my other Mac with the same specs.

Most of the times i need to close the Traktor software.. happened a few times at a gig..

Help!!

[Systematik]

I've got a Macbook Pro aswell. The point is you just can't really do anything else than remain in Traktor while your DJing. Running any other processes will cause problems in the audio.