What do I have to do to get that massive increase in damage output?
Your damage output can be increased by 50% by having arcane force of 1.5 x (required field arcane force). For example, if you need 60 arcane force to deal full damage, you need 90 arcane force to deal 1.5 times the damage.
Post pictures of your equips if you want advice on your gears.
Potted with 3%INT on hat, pendant, robe, and shoes.
9% int on face, 3%int and 3% all stats on earrings, 6% Int on eyes, 6% int on pants, 5% int on gloves and 8% crit on fan.
Also if important, I'm on Bera.
I get around 390-417K fully buffed.
12* on fan, armor with 7*, rest between 7-10*.