"What are Zenis plans for lag?"
Im curious too.
You can reduce lag and disconnects by typing your name into the guild roster search box. This was discovered a few days ago and ZOS has already acknowledged the issue and said that a fix is on the way. See here for more details:
https://www.reddit.com/r/elderscrollsonline/comments/a3c24j/performance_what_do_you_guys_make_of_this/