Concerns about DB queries - Social Theme


I have just updated my installation to BP 1.5 and Social Theme 1.2.9.
I have noticed that the queries to the DB have doubled since the upgrade (200 queries on group activity page). With BP 1.2.10 and Social theme 1.2.7 I hadn't even half of the number of queries.

I just wonder if it comes from the theme or from BP 1.5.
Any idea about this?