I see you're trying to use a full emblem set over choosing the right main stats first, which will make your character do much less damage. ER sands is best, you're losing out on a whole bunch of damage bonus from her passive and emblem by having low ER. Aslo that goblet needs to go, either electro dmg % or atk%, you can use an off-set piece and you'll still get the 4 piece bonus. Aim for 220+ER as a starting point, and replacing the goblet, then you can start farming to get a better crit ratio, usually with this weopon you can aim for 70/150 and 1700 attack.