Strange... apparently Comrade and FPS Limiter are doing something different than directly running the divinity2.exe file.
Did that help with the performance? 
A slight performance increase, I was reading around should I disable Crossfire for this game? Not sure if running the game with just one card would improve performance or not. I wouldn't think so, unless this game wasn't developed to utilize dual GPUs.
Not sure why I can't launch the game by itself. Comrade and the FPS limiter launch it fine, but launching the exe itself results with a black screen.