Reduce lag! Make aoe less effective so spamming it wont cause so much lag, so much dmg at once. AOE makes fighting irrelevant anyway. 90% there is no fight in pvp just lameaoe spamming, what cause lag as side effect. improve server, and reduce aoe efficiency.
I know there are aoe lovers who dont want to fight, just want to wipe out big zergs without fight, just spam aoe, but thats just bad.