[pkscout]

Sometimes the ArtistSlideshow plugin takes a longer time to fetch fanarts and I also have a lot of local area artist here, which aren't in the web databases but they have a local fanart.
Is there any trigger that I can use to display the local fanart when the plugin hasn't downloaded a fanart yet?

AS will start displaying images (local or cached) pretty much immediately. Sometimes there's a little lag if AS has to get an artist's MusicBrainzID, and on my systems that has never been more than a few seconds. If there is no local or cached art, AS shows a blank screen (or a set of images you define in the settings) while it downloads the first image. After that AS will show the first image and keep adding images as they are downloaded.