I always play a wood elf. I decided to try a High Elf for the magic perks as I am trying out being a sorcerer. I made her as tall as I could with all other settings as I usually do, average build, no gut, etc. This character is quite glitchy. I know she runs slower being taller so that is not the issue. When she turns to lock in on other NPC's each movement is followed by a one second delay. You know when someone walks by they move their heads.
Then moving around out in the wild, moving her to the left or right I get the same delays. Maybe these have always been there and you don't notice them on shorter, faster characters? I submitted an in game ticket but I haven't heard anything. I am ready to trash her and make one that is shorter in hopes the glitches are not there. I really wanted a tall character but something is wack.
I have other characters in the same area she is in and have tested those as well as my character Coldharbour. None of them have these issues but hey are all hobbit wood elves.

This one is like a walking, moving robot with pauses between each movement.