XDJ-RX bad recording?

Hi. Today I recorded a set and this is how i did it:

1. turn my xdj on

2. Link the controller to my pc using rekordbox link button

3. on the controller push rekordbox button and access my playlist

4. start playing

5. recording on slot 2 of the usb to a usb

When i was done and started listening to the set basically the set sounds like its skips forward sounding like it was not on beat. Or other way to describe is let say you know at minute 1 of the track there is a vocal but it skips to 1.05 and you miss..

I have a great pc, that i use to produce, game with sufficient ram, memory., good processor. Windows 10

What is going on?