Before you do that, try doing as much of the calculating as possible in SQL. I had a similar problem to yours recently, and brought the statistics generation time down from 45 seconds to 0.6 by letting the database do the computation.
Before you do that, try doing as much of the calculating as possible in SQL. I had a similar problem to yours recently, and brought the statistics generation time down from 45 seconds to 0.6 by letting the database do the computation.