Some users in our development team are experiencing slow responses when accessing TFS. Commands like "Checkout" and "Undo pending changes" take 15-20 seconds in almost all cases (sometimes they respond very fast). The process devenv.exe takes up all the CPU of a single core, but we see no network or hard disk activity.
Using the command line utility TF we have no problems, commands like "tf checkout" and "tf undo" return immediately.
Does anybody know what might be causing those delays?