Virtual with fluid trainer

I have a pretty basic fluid roller trainer (Elite Qubo) with a bluetooth smart meter. I want to use this with TP Virtual, and have actually completed a ride successfully. however, my movement is awfully slow in virtual, yet my avatar's legs move at the same cadence as mine.

since my trainer doesn't have any capability of increasing/decreasing my resistance (it's just a fixed roller), i have my TPV Workout Resistence set to Fixed.

Do I need to adjust virtual gears? When i used Zwift before, i could set the roller diameter and my wheel size to calibrate. I can't find any way to do this in TPV.

Thanks for your help