>>265849307
VRIK is a must have
start out vanilla and/or with graphical mods that don't alter your performances (or the flora mods that enhance them) and then add gameplay oriented mods depending on your playstyle 

and if you can keep your fps to 90 in forests and shit then maybe you can consider adding more eye-candy, but don't bother with high-res textures and ENBs and all that shit tho, your 580 won't cut it