Sprinting Power

On my second most current model of Tacx Neo Bike (not plus)

Ive noticed when really putting down the power I can feel the resistance slipping away under me and im almost spinning out the gear (virtual set 53/25-11 and if I get to say gear 13 at 100rpm I feel theres more in the legs but cant get that power down,

anyone else find this or slipping? its like the trainer cant keep up with the change in speed quick enough. My absolute best has been 1150w