Of course I know that PM is not an MS office product and that's a very silly comment.
My question, as a user that has purchased the application, is related to the fact that PM's menus draw quite observably rather than appearing instantly open at the mouse click. The background for the menu draws first and then the content shows up on the menu. It happens quite quickly, granted, but it is apparent and to my own eyes, it is a bit distracting. My assumption was that this was intentional, as in the menu was using an animation effect and thus I asked if it were possible to turn it off. However, you've indicated that it is not using an animation effect.
If it can't be changed, then that's that.