This game is capped at 30 fps as most are nowadays. Download FRAPS (freeware) and it will show your fps during gameplay. Using VSync in ANY game caps the fps at 30 - always. If you don't use VSync you get screen-tearing in the middle of your display. From what I can understand you only have one video card but you talk of disabling Crossfire. Crossfire is only available if you have two or more video cards. I also looked at the stock clock speeds for your 5970 card and they are 725MHz and 1000MHz. There is no doubt at these stock clocks your fps will dip well below 30 - especially with one card but even with two.

I have two GIGABYTE HD6850's in Crossfire (they are just barely faster than the 5970). I am running the game at 1080p all settings extreme with antialiasing on (the absolute maximum possible). The stock clocks for the 6850 are 775 and 1005. If I leave them stock my fps is 20-30. If I overclock them to CCC's maximum of 850 and 1200 I get 26-30 fps. I have mine super overclocked at 950 and 1150 and I get a solid 30 fps no matter what.

I use MSI Afterburner (freeware) to overclock my cards because it is the only way to unlock higher-than-CCC's maximum clocks which in turn is only possible by upping the voltage sent to the cards (which you can't do with CCC). It doesn't matter what your CPU is at. I am running my AMD X4 965 at the stock 3.4 GHz and overclocking the CPU will not make any game (almost) run faster. As the game engines evolve they get more CPU efficient.

You need to overclock your video card(s). A steady 30 fps is quite smooth but in this game it takes a heck of a lot of processing power to achieve. Like I said, my cards are marginally faster than the 5970 but the only way I can get a solid 30fps is to super overclock them using MSI Afterburner. I agree that when the game is running at anything less than 30fps it looks choppy but to expect more than 30fps - you're being unrealistic. I'm running 2GB dedicated video OC'd from 725 to 950 and 1005 to 1150 and from 1.149v to 1.270v and I'm just able to get a solid 30fps but my graphics settings are maxed and I'm extremely pleased with the gameplay.


Back in the days of Commodore 64 I used to dream about games like Divinity 2.

Yesterday is history, Tomorrow is a mystery
Today is a gift, That's why it's called the present.
(Taken from Kung Fu Panda)