Qubo smart trainer b+ off

Hello guys, I have the smart qubo; I have been complaining about how slow i go on Zwift but today, I tried for the first time running the qubo with the MyTrainer app and the speeds on flat terrain were about 40 m/hr, but when I run flat on Zwift it’s only around 20 to 22 m/hr.

Any help would be appreciated.

The Zwift speed looks correct, the MyTrainer speed looks unrealistically high even for a pro racer. What is your average speed out on a flat in real life?