You are getting good numbers indeed, at least compared to me, seems that I would have to change the scale to a new one to try and account for the issues I am finding.
You are getting (maybe due to your roster still being a work in progress) slight lower results on all stats (compared to last season), if this persist, I would suggest to try and globally up the number of fg attempts just a bit ... this should allow for more team assists, rebounds and ppgs (and maybe bocks, thus doubt). Also, make few edits to the FG% in order to up it a bit too, as the league average was 46%.
Then again, this season is going to be a shorter one and the last time we had a shorter season, the league had the lowest team scores and efficiency since the modern era. So, you might as well leave it as that. Thanks and again, sorry for putting you on this.