FPS: 1.
Chrome Version 55.0.2883.87 m (64-bit) on Windows 10.
AMD A8-3850 APU with Radeon HD Graphics 2.90 GHz
16 GB ram
On Firefox 51, I get 2 FPS (although probably roundoff error).
Doesn't matter if I use low textures without anti-aliasing.
I should not the CPU usage for shoots way up. So most likely the WebGL is not utilizing the GPU. I should note that the GPU is integrated into the CPU chip as an "APU"...maybe this particular model of APU isn't supported by the WebGL.