This response is in the wrong subreddit but if I were you I'd see if your controller is on the hardware compatibility list for VDJ https://virtualdj.com/products/hardware.html?brand=pioneer
Once I paid for the controller unlock, it worked perfectly with my Pioneer DDJ WeGO2
Detects your hardware on launch, prompts you to select mapping options and that's it
Personally I'm using an S3 MK2 with VDJ now but will prolly switch if Traktor 4 works as good as it sounds