Are you running multiple reporting suites?
I have found using a global reporting suite greatly reduces call volume.
Additionally if you feel the data coming in from AA is duplicative or that there are more calls then there should be, I would audit your data by creating a specific journey through your site, noting each step and then creating a report for yourself and review the number of clicks, pageviews, etc.
If you see a significantly higher volume than expected, I would revisit the rules around the associated data elements in launch.
