Played forza motorsport 5 on xbox cloud gaming and could not notice it. Of course I am the most non-serious player ever, but I really tried to notice, and for my standards it was fine.
maybe I'm just over sensitive to it, but I can't even stand playing when the tv isn't on game mode. can't imagine waiting for controller input to make a server roundtrip
Not even an issue anymore. I have no issue playing FPS games like call of duty multiplayer via GeForce Now and can be decently competitive. I do live close to the servers though.