Fucking this. I had the same problem. The other day I turned on my base ps4 slim for the sole purpose of downloading and playing this demo, so the ps4 was still cool. Then suddenly I get to the main menu of the demo and the fan started going crazy, like I've never seen it doing this much noise. Then I started the game and it got kinda quiet for a while but after 5 minutes or so I touched the console and it was quite hot.
So my question is, is this game optimized for a base ps4 at all? I don't want the game to brick my console due to overheating, if that's even possible, i'm not knowledgeable about this stuff.