Does the game not detect that it's on better hardware or something? Or are the games made with a certain power in mind so the games can't/don't understand how to use more power because of optimization?
It's more of the opposite. The console (in this case, the PS4 Pro) is looking for the patch that gives it permission to go All Hands On Deck for improved performance. If no patch is present, the Pro just defaults to Vanilla PS4 mode and locks down all performance to what you'd get from an original or Slim model.
Infamous SS is going to get an update right? Since it was shown off at the conference.
Yeah, Infamous and the First Light stand-alone have both been confirmed to be getting a Pro patch.