Hi Anthony, Welcome to MixVibes,
App Store users...
the quick way to get a Cross DJ serial is:
forward your app store bill to
djcommunity@mixvibes.com a user account on this forum must be open first with this restriction your forum user mail address must be the same as on your bill.
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Cross is capable of running with quite low latency, providing the sc supports this. First thing to do is go to highest value. If still issues you are sure that it must be something else. Else go lower step by step.
Did you already analyze the tracks you're using? Also there shouldn't be running to many other processes.
Once you registered your license key (after receiving) you can open a new topic in the Cross forum and get in more detail there. You'll also be able to upload files with e.g. some screen shots of settings.