if your animation does indeed contains some time period that looks like a pause, then you can try using AnimationUtils.subclip
Example : Threejs AnimationUtils Subclip - JSFiddle - Code Playground
if your animation does indeed contains some time period that looks like a pause, then you can try using AnimationUtils.subclip
Example : Threejs AnimationUtils Subclip - JSFiddle - Code Playground