First, sorry for my bad english, i’ll do my best for you !
So, i play in verry low, all is okay but i saw a big FPS drop on many locations.
1/ The Last Archive.
On this map, FPS drop on random points.
Arena begin fine but after five minutes, FPS drop strongly.
My Config :
Intel Core 15-4570 3.20GHz
W10 64 bits
GeForce GTX 760 with 398.82
i play in dual screen with a 1680x1050 on main.
I hope it can help you ! Thanks for this verry great game !