If the collapsed menus (such as those in MS Word) are displaying too slowly for you. You can make a quick and easy modification to make them appear more quickly.
Open the Control Panel and double-click on the System icon.
Click the Advanced tab, and under Performance section press the Settings button.
Uncheck the 'Fade or slide menus into view' check box, and then press the OK button.
Now when you expand a collapsed menu, it will appear more quickly.