We can include just a couple of elements in the plugins modinfo customdata field that will help a lot to solve some performance issues (app side) related to having to do additional Web Service requests for retrieving basic information before even the user access an activity module.

In particular:
Forum: Return if tracking is enabled (to avoid the heavy calculations related to pending posts)

Apart from the previous, we've noticed that some user fields such as "trackforums" are not returned impeding also calculating whether we have to execute the forum tracking related code in the app