Sorry for being so offtopic, but If would be cool if also the 2d-openGL renderer will gets an update to work more efficient.
Also i have a very cool feature in mind, which could massive improve graphics efficiency.
An optional component-flag, which tells juce, that its allowed to call the paint(Graphics&) call-back from a non-message-thread.
This way the juce graphics renderer could call them from a (multiple) background threads, and compose them afterwards. (Or maybe advanced, use the OS to compose the layers, like what happens to simple windows)