Created Unassigned: download timeout with HydroDesktop [10593]

Hi,

Is there a way to speed up a query or get rid of the timeout in HydroDesktop?

okeanos.limnology.wisc.edu/GLEON/cuahsi_1_1.asmx

here's a link to our services and I would appreciate any help testing... if indexes need to be added, specifically what indexes?

Thanks