Minimserver + MConnect

[simoncn]

This sounds like a limitation of mconnect. The UPnP protocol allows the control point to request a range of songs from the server (for example, songs 1 to 100 or songs 15000 to 15200, etc.) This enables the control point to do smart scrolling where it loads the range you are viewing and preloads the ranges just before and after this range so that scrolling up and down is very quick. If done correctly, this can provide very good performance for a large list.

Unfortunately some control points load the whole list before showing any songs, which takes a very long time. It sounds like this is what mconnect is doing.