I was able to play this game at maxed out settings prior to the FFB update. Following that update I was unable to maintain even 30 FPS on the low preset. I was in contact with CM support for a couple months and all their recommendations did not fix the issue. After running the gamut of the solutions offered, the final solution was to run the game in "safe mode" and just live with the tiny window and horrible graphics, which still wouldn't yield me 60 FPS. Following this, CM completely ignored all attempts to my replies or any new tickets I opened. I was unable to receive a refund for the game (deluxe edition too) from steam. I somehow CM managed to completely break the game with an update and has been unable to resolve it through multiple updates. I have a 6600k, 1070, and 16GB of ram and using an official xbox controller. I just tried all the solutions from this post and it has not fixed my frame issues. This was my favorite game in the world, and it is such a shame this happened. I cannot fathom how on earth this has happened from the devs. I wish I could get my 80$ back already after watching all the additional content that I paid for being added and being unable to play this game.
Edit: Interesting observation in afterburner hardware monitor: GPU usage is usually 90-100% but GPU power percentage never goes above 50%.