Animation Gif Detergent How Do You Change The Speed Of A GIF Animation?

How do you change the speed of a GIF animation? - animation gif detergent

I think pivot stick animator to create an animation. When I play in the pivot program is the coordination required in my speed. But if you save the file as a GIF animation and play it in Irfanview, the animation is slower than the pivot.

How do I change the speed of movement to my desired speed?