When Link is on a direct warp and the warp type is set to "Cancel Warp", the game slows down a little. Thought this bug could be exploited to make a Matrix-style slow-motion screen, it is a bug and the lag could be potentially worse on other systems.
http://rapidshare.com/files/75723595/BugTest2.qst.html
Located two screens down and one screen right from the upper left corner of the third DMap (the interior).
Windows Build 679, Z3 Movement Disabled