For some people different browsers work better than others in terms of frame rate and performance.
But it is what it is and not everyone can run WebGL straight out of the box it needs Hardware Acceleration in order to run.
You can check whether WebGL works at: http://doesmybrowsersupportwebgl.com
Common problems & fixes.
Chrome:
On Win XP, WebGL and acceleration is blacklisted because it causes various (serious) system crashes.
http://code.google.com/p/chromium/issues/detail?id=72975
However, to enable it anyway:
1) Close any open Chrome windows
2) Find the Chrome shortcut you use (normally on the desktop or in the start menu) and right click on it.
3) Select 'Properties'
4) Add the flag --ignore-gpu-blacklist at the end of the Target box
If that doesn't work type "about:flags" on address bar of google chrome
then under "Override software rendering list" Double click to "enable"
"relaunch google chrome" it should work now.
The above applies to systems running Vista, Win7, Win8/8.1 & Win10 as well.
Firefox/Waterfox/Palemoon:
WebGL and acceleration is blacklisted in some graphic cards.
Type about:config in address bar and make the following changes:
To enable WebGL, set webgl.force-enabled to true. "Double Click"
To enable Layers Acceleration, set layers.acceleration.force-enabled to true "Double Click"
To enable Direct2D, set gfx.direct2d.force-enabled to true "Double Click"
To enable Hardware detection, set media.hardware-video-decoding.failed to false "Double Click"
The above applies to all systems running WinXP, Vista, Win7, Win8/8.1 & Win10.
Other Versions of browsers to try if above doesn't help.
Chrome Beta https://www.google.com/chrome/browser/beta.html
Developer Firefox https://www.mozilla.org/en-US/firefox/developer
Edge Browser for Win10
Type about:flags in the address bar & tick the following boxes:
Unrestricted memory consumption
Experimental H264/AVC support
If still experiencing problems check you have the latest graphic drivers for your system. some links:
Nvidia https://www.nvidia.com/Download/index.aspx?lang=en-us
Amd/ATI http://support.amd.com/en-us/download
Intel https://downloadcenter.intel.com/product/80939/Graphics-Drivers