I have 300 hours in that game and I can guarantee you that the performance you are getting is completely normal for your hardware. Fx-6300 is not good enough. Also all amd graphics cards are struggling due to driver issues. If you are strapped for cash you could pick up an older i5 or i7 and overclock it.
I would recommend overclocking both cpu and gpu still but don't expect more then 5-10 fps. This game hates amd at the moment.[/
I have tried today just running it at ultra with two details put to very low for pvp advantage.I am surprised that it's running at freaking same fps as to mid/low....
I'm not sure how or what but yeah.
Overclocked my CPU to 3.8 for now