I got to a kinda bug - put a melee with heal and full defense in the 1 vs 1 in mage fight (mage could not damage me fast enough, but my melee also could not attack...) ... well, while writing this comment it ended, with no info messages what happened.
FOR LAGGING - while fighting, open another tab of a browser, this will disable redrawing and seconds will actually be seconds. You can't watch the fight or influence it though, but for farming and griding is OK.
It waits 3 minutes I guess and it should end battle with Draw result(instead of Defeat or Victory).