I duunow, never really paid attention to it...
Since Kobold preloads data from mySQL, the speed of the SQL server was not that important.
Also, the database is too small to be worried about performance. Or are you realy hosting huge amounts of data for thousands of people?? The Kobold DB is now approx. 30Mb...mySQL has default 4GB capasity per database
(Now however, LDC's python scripts get info directly from mySQL, so it has become little important...)