I never get usage like that.
Are you using the XMLTV epg grabber configured and working within the web server. Maybe this is what is causing the DB hits all the time. I don't use this one for my epg stuff.
The HTML seems to depend heavily on iframes, but my WM5 PDA says "Your browser does not support inline frames or is currently configured not to display inline frames". I haven't found any relevant configuration settings. What can be done about this (short of buying a newer PDA just to operate MP ;-)? Would it be possible to have a non-iframe web interface?