White screen smite + fps loss ?

I just installed windows 10 and now when I launch smite I have a white screen, it doesn't really matter because I can get into the game anyway but i'm wondering if it's a sign of something wrong in my drivers (or games components (adobe flash player,direct x ,etc).

The reason why I think there might be a problem is because I'm loosing alot of frames since I have windows 10

My pc spec : GPU 1080GTX, CPU 4970K at 4,2 GHZ, 16 go ram