I’m not Ryanair.
Sounds like you are flying i China or ME.
If I need 40 kts on the runway, I will do so. If it raises questions, by ATC request will do.
It does explain why I get stuck behind some airlines taxiing at very low speeds. Madrid behind EZY is a nightmare.
Anyway, you have my sympathy. It must be stressful to be scared of loosing your job for a minor issue like a few kts.