Pandaria Strange freezing

[Ramensnoodle]

My dk character upon entering combat the audio for spells and voice start to become distorted. Also when I'm in combat with multiple enemies the distortion becomes worst, fps drops to about 5 and character freezes to where I can barely do anything. I am not having any issues with any other characters and it does not seem to be caused by addons. I re-downloaded the client and the problem still persists, atm I'm downloading a non warmane client to see if thats the issue. I don't think it can be a pc problems since all my other characters no issues at all. Anyone experience this before and if so what was the cause and the solution?

[skullatbash]

"it does not seem to be caused by addons"
how did you test it? did you try to disable ALL your addons before to log-in with your DK?

[Ramensnoodle]

Pretty much I used a seperate client without any addons same issue

[Ramensnoodle]

Found what was causing the issue it appears its caused by the wow.exe that came with the mop client. After downloading a few other installs and the problems didn't occur with them I tried the exe that came with warmane's client and it happened on those installs. So for anyone that get issues similar to this one change the exe