Auto FrameRate ? Any hope?

Well. Playing, lets say, a standard mp4-file, a blureay-rip in hd, the auto resolution work fine. When playing a dvd iso-file, european, the auto resolution make the movie “jump” every 5 seconds. In the 50 hz mode the mp4-file “jump” every 5 seconds. So I have to switch between auto-mode and a 50 hz mode in “Display resolution” every day. No big problem for me, but for the kids and the mother in law and the wife. Change resolution every day. That´s frustrating.