Setting this to "fast" lets Awasu run much faster but there is a very small risk of a corruption in the archive database if Windows stops unexpectedly (i.e. because it crashed or the power goes out).
Enable the search index
Controls whether Awasu should update the search index as new content is received.
Maintaining the search index is a time-consuming process and can sometimes slow Awasu down if you have a lot of channels. If you don't use Awasu's search features, turning the search index off will speed things up considerably.
Results per page
Controls how many search results to show per page.
Restrict search index updates
Restricts search index updates to times when you are not using Awasu.
Ticking this box will speed up Awasu noticeably by deferring updates to the search index to times when you are not using it e.g. overnight. The only disadvantage is that new feed content will not be returned as search results until the next time the search index is updated.