In a few cases I've come across lag when in larger fights (namely when storming a fort). It seams to be localized as when I'm up on the wall of the fort no lag, in the court yard lag. Has anyone else had this problem?

I get lags on the dragons when using shock magic, but haven't had any issues in forts.

About 60 hrs in and just had my first experience with some major slow down. I was on a Summit fighting a dragon and it came to a crawl and was unplayable. My atronach finished off the dragon cuz I couldn't do anything. The dragon ended up getting caught on a shack by a mine and once it died, everything went back to normal. Totally unexpected seeing as I've killed many a dragon and never had an issue before.