If your system struggles a bit with the outside areas, there's a mod that dicks around with the grass meshes, making them smaller. It doesn't make the grass look much different, yet it provides a noticeable boost to your FPS.Clicky, clicky.
Aside from that, I'd consider downloading a house mod that has spell and enchanting altars. It's a pain in the dick to go through the mage's guild quests with a fighter just so you can get a mace enchanted. There's only about a billion of those to choose from. :P