Question on Aggregates

Dear Experts

When i run the query in Execute + Debug with display statistics data, in the aggregates name is displayed as info provider name(both are same name), why its happening? even its displaying DSO name, and all of you know its has no aggregates.

this DSO Consumes lot of time in Aggregating, Is there any remedies for this??

Please answer is this is very urgent

Another question

what is data manager ?? I found this in Event name which consumes so much time in query execution