Microsoft's Windows Server Update Services product (WSUS) makes use of a database, which unfortunately performs very poorly. There is a third-party script available that modifies the database (I believe simply by adding additional indexes) and my experience is that it improves the performance of WSUS by orders of magnitude, but it is no longer available free of charge.
My guess is that any professional DBA could easily improve the performance of the WSUS database, but I'm not sure this is an appropriate place to look for this kind of assistance.
Would asking a question about how to improve the performance of the WSUS database be on-topic on Database Administrators?
(For reference, this is the original Server Fault question I'm trying to help with.)