Pandaria 1-second lag when shapeshifting

[TheLacanian]

I play feral druid and I noticed that whenever I shapeshift from one form to another, there will always be that 1-second lag/delay. It's not too much of a hassle whenever I'm just questing and chilling but when it comes to PvP, it becomes a major problem: not being able to heal up in time for example. What could have caused this and is there a way to fix it?

[skullatbash]

I remember a guy had your same problem I guess he haven't solved yet.
Are you using WoD models?
try to disable all your Addons, still have the issue?

[TheLacanian]

No, I don't think I'm using the WoD models. Do the WoD models come with the MoP client at the Download tab? As for Addons, I play with ElvUI but I don't think it's the source of the problem since I disabled it and the problem was still there. :/