Network bandwith and GuiXT: Is there any response delay with slow networks?
No, there is no delay if you configure GuiXT correctly.

You will probably store the GuiXT scripts at a central place, e.g. a central file server or the SAP database (Web Repository or Mime Repository). In this case it is important that you activate the GuiXT script cache and use the "VersionNumer" command to control the cache update. There will be no additional network traffic after the initial loading of the scripts into the local cache, which is done automatically when a script is needed.