Scrolling Menu Transitions

Hey im new here and Ive got a question about Blenders Interface, it seems on my 64 bit version of blender that every time i transition through menus it takes quite a bit of time to scroll the drop out menus away before it loads the new one, it doesn’t do this on my friends version and the one at my school so im just wondering where and how i would turn this off,

Thank you,

Seradin