TransitionManager.start() fps?

1

Is it possible to set the frame rate for flash 8 transitions? So if I have transition:

TransitionManager.start(img1_mc, {type:Iris, direction:Transition.IN, duration:5, easing:Bounce.easeOut, startPoint:5, shape:Iris.CIRCLE});

how would I set desired frame rate?

Something like:
Tween.FPS = 30;