Ducky, the 30fps issue is not a technical issue with individual machines. It is an intentional coded cap by the developers. Regardless of your card or your system specifications, nothing will remedy the issue without intervention from the developers in the form of a hotfix patch.
As Lar (who is from Larian) has now pointed out in this thread, they are working on a hotfix for the issue. For those who manage to get hold of a hotfix, I would personally like to hear how it has made any difference as and when it's released, as for now, Steam have refunded my cost of this game. I will purchase it again once I know I can play it at a higher framrerate.
As for "humans dont see a framerate" - the majority of LCD widescreen PC monitors refresh at 60hz. If the framerate is less than 60fps then your screen is skipping those frames. In this game it is running at 30fps, so on my screen it is effectively skipping every other frame. The effect of this is that it reduces how smooth the movement appears. Most games offer up a "Vsync" option (its there in the new verson but it is essentially disabled) this forces the game to perform at no higher than the monitor's refresh rate (usually 60). Only when your PC's performance is unable to keep up with the resources necessary to produce those 60 frames each second will you see it begin to skip animating some frames, this sometimes is referred to as "visual lag".
As this game currently caps at 30fps, it is in a continuous state of so called "visual lag". The whole theory has nothing to do with how fast our eyes can respond to what is put in front of them on-screen, it is simply a case of how (in this game) the frames are rendered. For those who try to compare TV or video replaying at 25 or 30fps to how this game displays it, well, there is no comparison as video blends frames together to provide a blur effect in between frames to produce a more fluid replay. This was never on purpose it's just the way it is. Some video games do this using "motion blur", and those games, like Crysis and other games where you have an option to increase or decrease this effect can get away with rendering lower frame rates and still give you a sense of smoothness despite getting less than your monitor's refresh rate.
Even some games on consoles have a blur effect, or some way of decieving the eye into believing they are seeing things smoother than they really are. I have an XBOX 360 which I play games on using the very same monitor which I play my PC games on. Even though I know they are running at less than 60fps, I can play them without any issue. Yet every single PC game I have ever played that ran at less than 60fps and had NO method of motion blur (or something similar) I have taken issue with, and struggle to play them for any length of time.
So, good luck to Larian and I really do hope they manage to find a fix. The original Divinity 2 was a very good game, even good enough to make me pay for it almost twice over for this new version. I guess I am just unlucky to be one of the first to buy it and find out. Usually I get to be the one finding out about issues before I spend my money. But I will buy the game again 100% when the fix comes. In the meantime, I have surgery in a few days and I will enjoy playing Divine Divinity (again) on my little netbook while I am stuck in the Hospital!
