Speed Passion V3.0 Competition BL 13.5T

[guinness]

got one of this Speed Passion V3.0 Competition BL 13.5T,tried together with a Nosram Matrix Evolution esc and a SP v1.1 esc and i cannot get any reasonable punch from it.
it feels like is always cruising and not real punch out of corners. The punch settings on the esc's are at max.
the timing in the motor endbell is on the middle.
any tips on what i can do?
thanx