Steveo,
I could be wrong but there is nothing you can do about that in PowerPoint.
You will need a program to edit the animated Gif's and reduce the frame rate
there.

Signature
Luc Sanders
(MVP - PowerPoint)
> When I add an animated gif to ppt the speed of the animation is greatly
> increased and i would like to know how to reduce the speed or return the
> speed to the original.
> Eg: a gracefully flying dove appears in ppt as a wildly flapping bird.
>
> thank you.