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.
That's not big number to some sites, but for my niche, it's HUGE. This would never have been possible with Wordpress or any other software. Thank you Chris and the others that work on Composr.