It will take forever, that is why PC version is the best experience for BL; aiming is fluid and natural, and yoj can fiddle and tinker on the inside of the game file thus eliminating the need for enemy farming and quest reward farming
nope , but the toughest enemies in the raid takes more dmg from corrosive ,like Saturn,Dankino's mom etc,especially the skagg is pretty deadly it must be downed quick and run far away from it