Using RGB Interface in shield featuring ILI93525DS

Hello everyone,

I had bought this shield (link) some time ago, which I found to work very slowly when using UTFT. Recently, I read that the ILI93525DS features a RGB interface used to display moving pictures without screen flickering.

Shamefully, when looking at the schematic ( link ) , it looks like this shield is not connecting VSYNC pin anywhere, so that RGB interface could not be used in such case.

How could I get to work RGB interface on this shield using an Arduino Mega 2560?

Thanks a lot,
Xavi

Any suggestions?