Epic boss continued problems

[Bravo Zulu]

epic boss fine til level 60. At level 60 I hit boss health bar doesn't move til I hit x amount of times to take it down. It doesn't show how much damage I do per hit. It doesn't display that I have hit at all until it's dead. Couple that with the lag we all know and love (yeah, ok) and it cost me an extra hit here or there. And there is no way to plan whether I can finish or how much it would take for me to finish if I chose to use gold (yeah, right).

Can you fix this (yeah, I know. I know)?