Hello! The problem is that, mostly in exteriors and under the sunlight, the Vanilla shadows casted on the player character are extremely blocky, and flickers a lot, thus looking pretty horrible. Does anyone knows what's the best way or mod to solve that issue?

Thanks in advance for the answer

http://skyrim.nexusmods.com/mods/283

More of a ini tweak guide than a mod.

If you can't run a good ENB like http://skyrim.nexusmods.com/mods/17232, http://skyrim.nexusmods.com/mods/16464 is the way to go.