We apologize for the instability of composr.app and appreciate your patience. We are working on the statistics addon and trying to find an optimal way to store and render data. Unfortunately, we have yet to find a solution that can handle the traffic (and therefore, tens of millions of statistical records) of composr.app. We're working hard on one.
#5899 - Remove all uses of md5 in crypt and increase general crypt security
Note: In the process of working on this, I also fixed a few bugs with cns_edit_member and password history checking.