[whpalmer4]

Do you have trouble manipulating the sample documents, such as the coffee maker? That has more than 100 graphic elements, and I am able to manipulate the elements very smoothly, and undo my changes without any significant pauses. I would try rebooting the iPad (hold down the top button until you get the power-off slider, then slide it) to make sure the issue isn't due to a lack of available memory.

Use Contact Omni under the OMNI menu in the document chooser to contact them, and send along a copy of your document so they can see if there is something peculiar about it. They would probably also appreciate copies of the crash logs (they will tell you how to retrieve them).