I really didn't want to but I switched to VHydra and Blizzard with reduced casting cost, Teleport with fracture, Prismatic Armor, Sparkflint, and Magic Weapon with the poison damage rune. I also swapped out my skull for a shield. I now destroy Act 1 and farm Act 2 decently.
My old build was Magic Missle, Arcane Orb, Blizzard, Teleport, Force Armor, Force Weapon. It was more spiky (arcane dynamo + crit on arcane orb would yield some nice 6 digit numbers) and maybe a little more fun because of that, but dying became too expensive.