У вашего броузера проблема в совместимости с HTML5
Dying Light has been known to perform poorly, I have found that on AMD FX 8 Core CPU's it is best to disable one integer core per compute unit for maximum per-core performance.
CPU: AMD FX 8320 Running in 4 core mode ( In BIOS, select "One Core Per Compute Unit" ) OC @ 4.9ghz, 224 FSB x 22 Mul.
GPU: Gigabyte Windforce GTX 970 OC +202 Core, +312 Mem.
MotherBoard: Gigabyte 990FXA UD3 Rev 4.0
RAM: 8gb DDR3
CPU Cooler: Hyper Evo 212 Heat Sync + Extra Fan for Push/Pull config.
Resolution: 1920x1200p ( This is 10% larger than 1080p )
VSYNC On.
Video captured using Nvidia ShadowPlay, at full resolution @ 60fps, 50Mb/s