Mine is better than before.
I’ve never hit 35fps, but now im 25-40 fps. Thast improvement for me.
I’ve discovered its CPU bound rather than GPU bound. At 40 FPS it is using 95% CPU but only around 25% GPU. This is on an 8 core 4GHz CPU.
Yep, it’s only using a single core - Win98 styles 
So I did what any sane person would do in that situation and overclocked my 4GHz to 4.6GHz - problem solved.
But really guys, come on, it’s 2016. I was writing heavily multithreaded software in 2000. I realize it means a lot more locking etc but it’s really not that complicated.