I have an Urban Arrow Cargo line model but my display states the Performance CX model.

Don't worry your bike runs on the appropriate Cargo Line software and settings. The Cargo Line models uses the same hardware system as the Performance CX motor, therefore when your display starts-up, it states 'Performance CX, because Bosch didn't change the hardware booth-up screens.

For more information on the Bosch drive trains, please visit the bosch-ebike website.