I didnt check although I do remember seeing "tracker" something in top taking a good chunk during the sluggish startup but then the process disappeared. top showed the normal %1-4 of activity and even still it was sluggish everywhere. This prompted me to uninstall Extra Decoders Support after waiting for about 20 minutes to see if it went away.

Right now I'm trying to replicate the bug by attempting to go through the same steps (Ogg still bugs and locks media player when attempting to seek) but I cant seem to reproduce it. I'll let you know if it happens again.