Tacx 2T Neo

Hi all. Please help. I have just bought the Tacx turbo trainer. I have paired with Zwift but resistance doesn’t seem to change on the machine and my wattage seems low for the speeds I’m achieving. Am I doing something stupid or is there a setting I need to change in Zwift or on the trainer via the trainer app e.g calibration
Thank you, your help would be appreciated as I’m trying to train for a triathlon next September

No calibration.

Have you enabled ERG mode?
And what trainer difficulty are you set at?