Issues with Animations with Creating an M2 Carbine

Alright so I have gotten help from Panzer Jager '43 with some coding problems with an M2. However now I need help with some animations, I've been having problems with the firing animations (I'm using the M1's). I believe it's because it is too slow, because of the ROF. Now here's where I need help, How do I adjust an animation's speed and save it, as well as where to save it...

Any help would be appreciated.