The main purpose of the torque display is so that you can easily validate the torque measurement accuracy, by hanging a known weight from the toe of the pedal. When there is no weight applied, the result you get after calibration should be near zero. The value shown represents the sum of the torque sensed by both pedals.
So constantly changing is that ok. If so I don’t understand why the figure changes when nothing is moving and bike on a turbo.
Thanks for reply