Even though animations are nice, they lose their charm when you see them day after day. Animations should be there to give you some visual feedback on what is happening, what will happen, what caused that to happen. I think they could easily be shortened.
Also, I think various windows/popups could start showing when you start a click, not end it (right click, double-click etc.) ... That way you could work faster with C3.
One more thing is what Mac OS has had from the beginning and also Windows is getting used to it, that is dragging over toolbar options. Instead of clicking "Menu", releasing mouse, selecting an option and clicking again, it could be that you just start the click and drag the mouse down towards your selection, then releasing the click.
Just my thoughts.