Hello, you can switch the Xim Matrix output mode from Xbox/PS4 to PC Controller Output. My purple lights are gone! And you don't need an authentication controller.
But one problem:
The Touchpad doesn't work correctly. Touchpad now is Share button and the Share button doesn't work.
The purple flashing can be caused by other reasons than the 1000 Hz problem. If you are not experiencing delays in your game play and the purple blinking is just bothering you, flip the Matrix over to make it invisible.