https://skyrim.nexusmods.com/mods/19446 This mod is by far the best LOD improvement mod out there, it adds THOUSANDS of new items, rocks and all that good stuff to the LOD in skyrim. you might think, doesn't Distant Detail do the same thing? it does, but only to the tundra area in skyrim, SDO adds new LOD to all the places in skyrim, it also adds optional stuff as giant camp fires can be seen from anywhere, waterfall effects can be seen from anywhere, and the marshes trees to be seen from anywhere. The author said that the performance hit is about 10% but depending on your system. I've been using this mod for a week now and i haven't encountered any problems at all, and i didn't notice a significant performance hit anywhere in skyrim.Â