@warrenb said:
i chaged speed fps but its made no difference
Sorry, I'm not very clear on what you mean here. Do you mean you changed the animation's target playback speed, or you mean something else?
@warrenb said:
now how can i make it speed up gradually after e (engine start) is pressed?
Could probably look into using linear interpolation to drive the speed value(of the animation tree blend) over time?
Also is this a 2D or 3D project? Asking so I could move the topic to an appropriate category.