Just wanted to pop in here to say that for myself, and many others in general chat have reported that turning off AA, or switching it from TA (preferred) to any other option has made the game look extremely better.
When I first installed LE last night I was wondering why my character and the mobs looked blurry and tried searching for an answer online. I only found older info about a bug that was not setting the correct resolution where you had to switch to different ones and back to your native to sharpen up the game.
This however did nothing so I kept playing around with the settings and when I changed AA to off the water and mobs and my char looked much cleaner.
Not saying this will work for everyone but multiple people have thanked me for telling them this because they too were experiencing the same as me.
I guess it defaults to TA (preferred) for everyone when they first install the game?
I was confused because I have a very good PC/GPU and had no idea why the game looked so blurry.
Hope this helps other people.