Bluebeam View mode and Mark up mode
If you are using Bluebeam to view scanned PDF, Ebook, PDF with many pictures and PDF with many pages.
Use View Mode
It will be faster performance because of removing other Revu Extreme features that you will not be using because you are just using Bluebeam for viewing PDF.
If you will going to do markup use Markup Mode
Note:
If in view mode, many features such as add stamp, markup tools and etc. cannot be accessed.