Are you using WTFast ? If you aren't yet , start using it . I know it helped tons of people with ping issues .
Sorry that the Australian players can't enjoy the game like they definitely should :S
This is not a new MMO it was developed years ago , the engine is old .
As for the ping issue , well it's a action based MMO .
Having decent 50-60 ping is a must for certain classes in PvP .