How do you beat the speed of light? That's ultimately what we're up against here. High-frequency traders lay down special fiber lines between the exchanges to get the absolute fastest possible ping times, at enormous expense[1]. That gets a 13 ms ping time from NYC to Chicago.
My experience with a Steam Link, hardwired on a local ethernet makes me skeptical that any of these cloud gaming platforms will really be practical.
[1] https://www.telegraph.co.uk/finance/newsbysector/banksandfin...