monitor WCF (from service to client and vice versa)

Question

Hi there.
I have WPF (client side) and WCF (service side) in my application. when i run the sql profiler, on the database side everything goes so quickly but for some reason the WPF app is refreshing really slow. The client side computer surely has a minimum hardware requirement (64 bit I3 intel processor with windows 7 professional and 4 Gig of RAM). any suggestions?