Are they really this fast?

[Mike]

I don't think this particular sequence is impossible, Vitani and the outsider on the right were already nearly at the bottom in the next-to-last frame, they just can't be seen because of the rocky formation. Nuka was already somewhat close in the last frame and I don't think he'd find it impossible to get there.

Zira catching up though... that's where it gets tricky lol. I don't think that's realistic, but oh well =)

[CommandoTheLion]

Smile to the camera Nuka xD

[LionKing4EVR96]

They probably forgot about a dozen frames of animation at least!

[FlipMode]

Yes gravity can make them faster, but it's still a scientific mistake

Ironically you may have just answered your own question right there. It is either a lapse in frames of animation (which does happen in fast moving action sequences sometimes). Or more likely, action scenes are supposed to be "OTT" in terms of what is happening in them. I mean there is this film I watched recently called "Con Air", and in it there was a bit where Nicholas Cage was walking down a plane, GOT SHOT, and continued walking... I mean really he absorbs the bullet like a sponge... I mean if it were Chuck Norris then fair enough, but it was not!
So what I am trying to say there is that action based scenes like this are often unrealistic, to make it better for viewers which could be another possible answer.

[SummerSnowLeopard]

Maybe gravity made them faster lol... I have no idea. Lions can be pretty fast.

Yeah.

Also, whats the question here? I'm a little confused