Bossing on AB with higher ping is extremely frustrating currently, since the recharge is server sided which causes a slight pause inbetween ability casts, this is especially noticeable with trinity.
My suggestion would be to remove the recharge system entirely once affinity heart IV is level 30, or to make the recharge client-sided.
I hope Nexon will consider this problem soon, this has really been turning me off from playing AB.