Blizzhackers

I Recently made a novamancer and since i deleted my hammerdin i want to bot with this guy, he does over 9K nova damage, and manually played he can do cows pit runs and andy without a problem. Now i setted my config and i runned him a few times, the problem is, he stands to far away to hit effective and he spams nova SO much he has to buy potions after each 5 minutes. Can anyone tell me if this can be solved ?

thx in advance