M4xw0lf: There's also an in-game FPS-limiter, did you check what it's set to?
LeonKillsAshley: I have it set to no limit, and setting a limit has no effect on frame rate. The game is just very poorly optimized. I thought it would just be 1 area, but I've been encountering areas with really bad frame rate the more I play. I've put the game on hold until this issue gets patched, or someone finds a workaround.
Games like this will never be optimized for high frame rates--PoE won't play one iota better at 100 fps versus 60 fps. These games--isometric RPGs--are not first-person shooters that generally require fast frame-rates because the number of pixels changing from frame to frame is often large--hence shooters are the market for very powerful GPUs, primarily. Using them for PoE, Tyranny, imo, is bound to be a waste in terms of frame-rates required to smoothly play. When I play these games I never look at frame rates because I simply don't care--as long as the animation is smooth without hitching at my chosen resolution with max IQ I'm happy, and I think most people would be, too. Also, in a game like PoE, the only "3d" elements on the screen are the player characters, NPCs and monsters (and their magic effects and explosions, usually.) All of the backgrounds in PoE are 2d imagery.
I'm really responding to your post mostly because I think it's first one I've ever heard complaining of low frame rates in games like these...;) But, don't misunderstand--if you are getting hitching and stuttering along with your sub-optimal frame rates, you have every reason to complain. But I'm playing PoE with an R9 380 4GB GPU that I know is less powerful than your GPU--but I'm not hitching and everything plays very well--1920x1200, but sometimes I use 2560x1600 VSR. Are *you* using VSR? If so, trying playing at your monitor's native res. But really, as long as you aren't stuttering or chugging along, raw frame rate is not much to be concerned with in these kind of games--imo, of course...;)
It's been many years since I used nVIdia products, but one thing I remember is that nVidia drivers tend to lean on the cpu quite a bit--don't know if that is still true, of course. Interesting post!