Video player with motion blur or frame averaging I here would be a good place to ask, I apologize if Im mistaken.

I am looking for a video player that can add motion blur to videos or that can insert an average frame in between two frames.

The reason I think I need this is because some videos appear stuttery on a low response time monitor. If I connect an older monitor to the exact same setup, the problem goes away. I figured it would be a good way to test this theory.
You're looking for after effects.