You may wish to limit Sitebulb, in terms of how deep it will crawl, or in terms of how fast it will go. By default, Sitebulb is set up to cater for most sites very well, but occasionally you may find that you need to limit the crawl, and you can do this via the Advanced Settings.
To get to Advanced Settings, you scroll to the bottom of the main Audit setup page and hit the grey Advanced Settings button.
The Limits section is under Crawler -> Limits
The first two options give you various ways to limit the crawler so that it crawls less (or more) pages/content: