I've been using SOAP to access a few web services in an external built application. Everything works how is supposed; I can read and write from my external app. I recently have run into a problem. When I use the "retrieve keys list" method, and the list is big, let's say 200 items, the response takes a while (around 15 seconds or so). I was wondering if there's a way to speed this up or another method/way/best practice to do this in the least amount of time and memory possible.