Some games are better at handling it than others, though...
Sports Champions is fun because it really is 1-1, and for me it really shows when playing the table tennis game. You can swing the paddle, rotate your wrist around to change the paddle angle and see all that movement in real time, and it's really immersive for such a simple game. Others like Tiger Woods for example definitely have some lag on the swing, because you'll be in your follow through before you hear the club strike the ball. In TW's case the 1-1 really isn't essential for game play (personally I don't even look up at the screen until after my swing), so it can kinda get away with it. It would be pretty important for a baseball game to have a quick response since you WILL be looking at the screen as the pitch comes in.
It all depends on how well the Move is implemented.