Cool tip from The Revit Convert on how to skip the splash screen and speed up the loading time of your Revit.exe. Just right-click on your Revit shortcut icon and go to Properties, then:
From the Properties palette and in the Target box, go to the very end of that long sequence and add {spacebar}/nosplash (after the ” marks, not inside them) (please do not type {spacebar}, that is just my indication that you use the space bar)
Read more at:
Want to (slightly) speed up Revit? � The Revit Convert