У вашего броузера проблема в совместимости с HTML5
A quick test playing some DOTA 2 with the AMD R7 360 1920x1080 FPS top right, settings used at end of video. Parts used in build below. Asus R7 360 2GB Graphics Card 2×4GB G.SKILL Ripjaws 1600MHz DDR3 Ram AMD A8–7650K Black Edition APU 240GB Kingston SSDNow V300 ASUS A78M-A FM2+ AMD Motherboard LG DVD Combo Drive Zamlan 400w ZM400-GVN Power Supply Corsair Carbide Series 100R Mid-Tower Chassis Microsoft Windows 10 64bit