As we are all aware there is a lot of training happening with generally less experienced students so then slowing things down cannot be a bad mitigation.
Right then Boom, that was in response to an insider’s explanation. And let’s face it, the attrition rate was said to be very high on earlier threads so at some stage, if your operation continually needs trainer wheels, the regulator should take an interest in pilot turn-over.
You gave the problem away in your comments so let’s not beat around the bush. If pay was block or better, there’s no slow taxiing problem up until the flight time wanders beyond block. Seen it all before.