It takes much time for the controller to be recognized by Serato DJ Pro after the application is launched.

When multiple ASIO drivers are installed into a PC, it may take time for the controller to be recognized by Serato DJ Pro.

　　Please uninstall unnecessary ASIO drivers.

　　Please ask the manufacturers of ASIO drivers for details of how to uninstall them.

ASIO driver: A type of driver software which controls sound input and output between a PC and a soundcard (audio interface).