I always had a major fps drop - \‾ (`-` ) Major FPS Drop- when i go to the Soul Cairn but after a long time of suffering i noticed that there were way too many dead trees and shrubs so i opened the CK and saw the horror.

There were 1282 shrubs and 995 trees in the soul cairn.

So i made this small esp to remove them and it gave me -wait for it- 16 fps i went from 22-23 to 38-39 fps.

Installation:
1-Extract No Soul Cairn trees nor shrubs.rar to the data folder
2-Tick the esp in the mod manager u use 
3-Enjoy!

Uninstallation:
Delete No Soul Cairn trees nor shrubs.esp