[Development] Qt app rendering throttling on Android

[Adrien LERAVAT]

Hi all,

I'm looking for a way to throttle the rendering frequency of a Qt 5.9 Qt Quick application (only), running on a custom Android 6.
It is running a threaded loop `QSGThreadedRenderLoop`, which by default is going to limit itself to the vsync AFAIK, but that's actually too much for us.

Are there any hooks to throttle the framerate and QSG updates, without hacking the source?
And if a source code modification is necessary, any recommended location? So far looking in and around "QSGRenderThread::syncAndRender".

Thanks!

Adrien Leravat,
Witekio