The bundle is $30 on PSN right now so I decided to just bite the bullet. I booted up both games and played for a few minutes. They seem…fine? I haven't noticed any performance issues, at least in the beginning. Having played the first one on X360 fairly recently, at least the PS4 frame rate is way better.
Really digging it. It's like what you'd expect a modern Tony Hawk game to be, if the Tony Hawk games weren't being made by lifeless husks stuck in an endless loop of developing the same old thing by their creativity-&-passion destroying overlords at Activision.