Please fix combat timers for PvP

Currently the time it takes to get out of combat during PvP is like 3 seconds, which is definitely not the vanilla value. This is especially abused by rogues, who can stun-lock you, run 2 seconds before the stun ends and are stealthed again when you come out of stun, then stun-lock chain again, rinse repeat.
I am also not sure if the diminishing returns on stuns are working as intended, as currently it basically does not exist, so ppl can chain-stun you. However with this one I am not sure how it was implemented in vanilla (if at all).
I am also not sure if the diminishing returns on stuns are working as intended, as currently it basically does not exist, so ppl can chain-stun you. However with this one I am not sure how it was implemented in vanilla (if at all).