Pro 2.5 Audio its "hooking",the monitor its blocking 2 sec when im loading a track

Hello guys.i have this 2 problemes!

1.Sometimes when im mixing the audio seems like its "hooked".And its not cool during a live
2.For example when the desk A its playing and then when im loading a track in Desk B my monitor freeze for a sec.or 2 sec.But the audio it's constant,its not blocking!All my tracks have been all analyzed before the live.

My setting are:
Traktor Pro 2.5
External Audio : NI a2
Controller: NI X1 Kontroller
MacBookPro: versione OS X 10.7.7
Processor : i7, 2,6 ghz
Memory : 4gb DDR3
No others software open background.The wi-fi its on.but i never had a wi-fi in disco.Sow its never have woek!

Latency : 512

Processing 11,6 ms Output 0,9 ms Overall 12,5

Multi-core : Disactivated

Thank you!

 

Turn wi-fi off. Even when it is not connected to anything it can cause problems. (Actually the problem is worse when it is not connected.)

Follow the tuning tips in the knowledge base article. http://www.native-instruments.com/knowledge/questions/847/Windows+7+Tuning+Tips+for+Audio+Processing

 

Thanks.I think to upgrade my sound card to Traktor Audio 2_251 and to traktor Traktor Pro 2.6.Maybe will work better.As i said sometimes my audio makes some ms of pause in tracks when their playing...like the audio its hook'd or its the feeling that the processo its overloaded and make this ms of pause!
The link you have send me its for windows.I use OsX!And DPC Latency Checker its only for windows.
But my Latency settings are good?

 

Sorry missed the fact that you were on Mac. Yes your latency looks ok.