I'm building up the contents of a RadMenu from database tables.  To improve performance on repeat visits to my page, I'm caching the XML representation of the menu, so that I can build the RadMenu instance from XML and avoid the DB hit on subsequent visits.  However, I'm finding the the RadMenu.GetXml() call is very slow.  According to AQTime profiles, it takes about 0.89 seconds on average.  This is for a relatively small menu, with 6 or 7 items, some of which contain custom attributes.  Is this performance normal and expected?  Any thoughts, suggestions?  Thanks,

-Daire