Question / Help Streaming World of Warcraft

[Peejayz]

Currently wondering what my settings should be on for streaming world of warcraft. When I stream right now it does not look too bad, but causes in game lag, as well as slow in the stream at some times during PvP.

ANY RECOMMENDATIONS WELCOME.
Could it be slow internet?
Could it be OBS settings are not optimal?

ty-
Pjayz