The Order Of The Grook Quest Broken

So I've been stuck on the order of the grook quest for about an hour now because it's broken. I chose the fire class while in the selection thing near the beginning of the quest. The fireballs that are supposed to be apart of a test in the quest are broken. They lag left and right and even when the game shows I hit them they just change direction and come right back around to hit me anyways. I don't know if there is a way to auto complete this quest or change classses but if there is I'd like to. I've been through the test about 50 times now

 

Its not broken just really hard to do if youre laggy, if u just spam click the fireballs at an angle it works like 50% of the time.

 

Ikr the fireballs crashed into each other and exploded and didnt evenget fired at me many times, once 4 fireballs crashed to each other and only 1 came at me and I got 1/5 lol