ttkkit

i have the same problem here. I have this problem with all helmet that cover the entire head,such as Ebony ,Daedric, nightingale Helmet. Do anyone know what is the problem??

i experienced lag when my character is wearing some closed-face helmet such as ebony helmet and daedric helmet But it doesn't happen if i wear open face helmet like iron helmet. Why is it happening and how can i solve it???