Unreal and IPI, a lot of lagging documented in this video

HI! I was trying to connect IPI soft Mocap Studio with an Unreal Mannequin in UE4. This is the result. ipi lag - YouTube Everything seems fine in the software, but when I check the situation in UE4 everything starts to be messy, laggy… What do you think that is due to? Is it just bare computer power? It is so clear how when I am handling just the IPI studio I can see 28-30 fps and then it suddenly goes to 20 (plus all the mess happening) Thanks very much, any help or opinion would be greatly appreciated! Alex