title: Unity WebGL performance issues on Retina (MacBook)
body: <p>I developed a WebGL Unity 3D app with a 3d character that can navigate in the environment (mouse navigation and WASD) and interact with some objects.
  On windows it is all great  and the FPS is 45-60 and the resolution is 1920 * 1xxx.
  On Macs the performance drops to 13-17 because of Retina and the resolution is 3300 * 2100 (double the laptop's resolution).
  How can I handle this ?
  Any help would be appreciated.Thanks in advance!</p>