Bkool smart pro ERG issues

Hi! It took me a lot of pain to connect my bkool smart pro to Zwift because of the ant + fec issue but i finally made it.
The problem now is that using the automatic ERG mode on any route the simulator catches a lot of inertia therefore even riding with the biggest chainring and the smallest sprocket it catches a lot of inertia, the power is super low and the cadence super high, it seems it goes without any brake. I have to switch off the erg mode and go manually with a permanent incline.
Does anybody have the same the same issue or has somebody solved it?

Hi Patri, I’m not quite sure I understand fully. So you are cycling in Erg mode - i.e. doing a set workout, and when you do this you are spinning out and not reaching the power targets? Is that right?