UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.101 Safari/537.36

Steps to reproduce the problem:
1. open http://goo.gl/hKyUT5
2. click on "HIDE CODE"-button in the top right

What is the expected behavior?
it should render with 60fps

What went wrong?
it only manages to render with 30fps on my system (windows 10, AMD Radeon HD 5700)

Did this work before? Yes in july this year (chrome 52)

Chrome version: 53.0.2785.101  Channel: stable
OS Version: 10.0
Flash Version: Shockwave Flash 22.0 r0

Note that this example is silly (see lines 141-148). I am setting `needsUpdate = true` for all mesh-attributes so that three.js rebinds the buffers.

The example runs with 60fps in both Firefox and Edge and it ran with 60fps in the previous stable Chrome.