*OVER-REV + KICKDOWN?* ZF Enviro 200 on Route 407 [Abellio London]

I have no idea if this is normal for these ZF E200s, from my usual experience they dont tend to rev as high as this one did so im not 100% sure if this bus has a dodgy gearbox thats holding its gears for longer than it should or im just a dumb. Either way it doesnt make much of a difference as they only rev slightly higher than normal. And that new announcement is annoying. Every time you leave the top you gotta be reminded, like the imbecile you are, that buses move. Sorry. not quite teleportation yet. Enviro200 Some cummins engine cba ZF AS-Tronic Lite gearbox YY64YJH, 8826 Operated by Abellio London from their Beddington Cross (BC) garage. Route 407 Sutton Town Centre - Caterham