Suppression of round trip logic to the server

because of the nature of WebDynpro having little logic on the client and everything executing on the server, we have noticed sometimes that when a control is clicked, you can see several round trips to the server. Whilst you expected an immediate refresh of the screen, sometimes clicking on a checkbox result in a delay in the refresh. We actually see the browser fetching something from the server! Sounds like clicking on some of these control, WebDynpro triggers an event that requires a round trip to the server to see if there is any custom code that needs to be executed. Because this is done, it results in some slowdown. If we know that there is no logic tied to an event, I'm wondering if we can suppress this round trip to the server