However the application comes with a pre-set search-engine, it may not fulfill your needs perfectly so there is the facility to fine-tune your Citation Machine.
The reason of the huge set of options is that the application basically downloads html-pages using Google-scholar. Unfortunately there are no public API for this service and the automated queries can trigger banning which is a not too desirable side-effect.
Normally when you don't apply self-citation filtering this is not really an issue. As soon as you try to get self-citation data you can count 1 to 10 extra pages to download for each of your papers! In the worst case it can be 1000papers*10pages. This is a huge load indeed but fortunately in practice this is almost never the case. You can count at least a hundred pages which is still high enough to trigger anti-bot actions.
The solution is to download pages similarly than a human-user would do. The application randomize delays between downloads and stops for longer periods occasionally.
The sense to let you tune these options though is that you may expect smaller result-sets or you get banned too often. In these cases you may want to have faster processing or slower according to the circumstances.
If you go to the preferences>Search options menu and choose the Search parameters tab you can set these parameters in two levels.