Reply to apc40 problem with traktor pro

hello there
first of all, let me thank you all the users that posted some TSI files, to help us,
second i have a question, i have a apc40 and mac book pro, traktor scratch pro with audio8, but i believe it's strange when you push the button for the PLAY, it doesn't respond automaticly, it seems it has a delay, so when i push the play button the mix is always imperfect, do you it's a problem of latency or preferences, can someone help me with this doubt.
Sorry if my english sucks
best regards to all
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