Funny, Only a very select few games have had frame rate issues on PS4, and they're all third party developed titles with bugs that ended up falling on the developers themselves; not the console. All of Sony's AAA first party titles thus far have looked amazing and have run amazing as well.
Yeah like 1080p 60fps on Forza 5, right?!
Not sure what that has to do with framerate issues. Unless you're implying that if a game doesn't run 60 FPS, then it has issues, which is a ridiculous statement to say the least. If a game is running at 30 FPS, locked, with zero drops or tears, then there's no issues.
Also, this was already established, but Forza 5 only achieved that with some of the worst graphical downgrades in history. The game was barely a step above GT6, and actually had less features (no night and day, no weather, etc.). Nothing to brag about, so I'm not sure why people keep bringing it up.