At the moment, all feeds defined in RSS Aggregators are imported sequentially.

If there are many feeds defined, it takes too long for some clients until the feed importing is finished (even for well performing feed sources).

Therefore we need a better strategy for the feed import (e.g. starting several jobs at the same time).

One idea would be to have a flag on every RSS Aggregator determining the priority of the feed.

What we should guarantee:

Be able to import 500 (well performing) feed sources within 5 minutes.