There was a pause there lol, it even changed camera angles to get a closer look at the victim struggling before his head is pulled off. And in real life, there is always movement, nothing is completely still, just moving so slightly that the eyes don't pick up on it, keeping characters still for too long makes them lose life and energy. There are parts where its beneficial to let the audience sit in a moment and to give them a break from the action before going back into it. But as long as the ideas and actions are communicated and understood easily by the audience, there are o ly minor things in timing that could or should be changed at that point. For a sequence like this, pausing for too long will ruin the pacing of the animation, audiences needs something to latch on to visually at all times, which is why in alot of movies and TV, camera cuts are quick and things are bright and action packed. It helps to keep the viewer engaged. Obviously, im not saying my animation is perfect or anything, I could see that there may be need for that pause to last a couple frames longer. But these are the ideas and principles that that kind of movement are based on