How complex does making a horse run cycle transition need to be

[ReyReno777]

I could be mistaken, but in the video you showed us, it appears that the horse running animation is a single animation track played in different speeds. If that is the case, increasing the speed of the animation dynamically seems to be the way to go.
There have been topics with solutions discussing the speeding up of animations.
This might be of assistance:

Change the speed of an animation

Is there a way to change the speed of an animation without having to edit it?

Edit: Concerning the animation cycle transition itself, “AdjustWeight()” seems to be what you’re looking for. If that’s what you need, this might be of assistance:

What is AnimationTrack:AdjustWeight() used for, and how do I use it?

If the animations have the same animation priority, the animation weight is basically the ratio of how much one animation plays on top of one another. Kind of like a cross fade effect. For example if the weight of one animation was 0.5 and another one 0.5 and they were both playing at the same time, it would look like it was playing both animations at the same time. But if one was 0.8 and one was 0.2, i would still look like 2 animations are played but one is more visible. They probably were,…