I bought a Gigabyte R9 270X 4GB OC edition i play LOL on a Acer 720p monitor. I have been have this insane FPS drop from around 50-40 fps but only with shadows on, with shadows off i get a constant 60. I'm thinking since my monitor is capped to 60 fps the GPU is bottle necking. Is there any one who knows how to fix or has the same problem?