I don't like the cut of the crossfader. Can I adjust it?

Yes.

You can adjust crossfader curve in Serato DJ Pro [Setup] > [Mixer].

For details, refer to the Operating Instructions > "Changing the settings" > "Setting Crossfader Curve".

For cut lag, refer to the Operating Instructions > "Changing the settings" > "Utilities modes".

You can read the Operating Instructions [here].

*Crossfader curve affects the way the sound changes when you slide the crossfader. You can adjust it to suit your preference when scratching or mixing. Cut lag is the length of the silent zone at both ends of the crossfader.