Oh, Definitely! It couldn't be the layers of parsers, spaghetti Javascript libraries, web protocols, the DOM, WebGL itself which is a part of Javascript, or a million other crufty web things, it has to be the microsecond latency introduced by hardware-level API abstraction...
User-level libraries can't lock up your OS unless they can trigger kernel / driver bugs or make your hardware malfunction. In this case, graphics drivers are the most likely cause.
