That maybe because of electric engine. But when I was checking speed on Speedometer app between TPTY to DMM it was 40-60Km/h train is already delayed by more than an hour(though departed TPTY at RT); halted DMM for 1 hr (and 35 mins. at GTL).
But brother, just running with some higher speed between some two stations cannot make this train reliable in terms of speed/punctuality, for whoever relying on my so called false statements, they already know how punctual this train is! People like me used to reserve the seats in the train due to non-availability in other faster trains. I repeat, only the name of the this train 'super fast' actually its worse than a passenger.