I couldn’t find anything about this matter but the best way for you to go is by taking a look at the animation part of the Unreal Engine through Persona.
As to the targeted part, I’m positive this is achievable, just how are you planning on developing this? Singleplayer or multiplayer?
If you just want to speed up animation you could activate the slow mo mode inside UE4, set it to e.g. 0.1 and then play back the animation at 10x speed. So everything except the animation would be slowmo.