Hi! There is a Communication Web service polling time parameter under the Configuration - Web Service page.

That parameter defines the poll time of ResourceFilterQuery, which is kind of a prerequisite for the WorkOrderQuery and it can be quite intensive based on the filters and time window entered.

So, the poll time is Web service polling time (configurable) + ResourceFilterQuery execution time.

I'm not sure which version you are using but I think there is no difference in polling between 2.0.x.x and 3.0.0.x ranges