It's two things. First, UE5 is just currently in a very unoptimized state. And that's evident when you look at how games perform on the PC.
Here is this game running at 1440p and 2160p.
Notice the 4090 couldn't even manage 50fps at native 2160p? But more relevant, look at the 1440p chart. 4090 is at 80fps and the 6700XT (closest to the PS5/XSX GPU in that chart) is only managing 30fps. kinda makes sense that they would have to halve the internal rez from 1440p to 720p to double the framerate which is what they did. Figured they could get away with reconstructing that to 2160p anyway.
What most people don't know, is that UE has always been an unoptimized mess.
Then the second part,itsthe devs. An argument can be made, that if the option to use reconstruction was not there to begin with, these devs would get more out of these engines and optimize their games better. I can't help but feel a devs approach to building their game is completely wrong right off the bat when they start by saying, just make the game, we can just reconstruct to smoothness at the end of it.
Because let's not kid ourselves.. I can show a good number of games on these consoles running at higher rez, also at 60fps, and that look significantly better than a great number of these underperforming games.
People really need to stop doing this shit. The game runs terribly on EVERYTHING. The 2080Ti... better card than what you mentioned, only manages to run this game at 30fps@1440p and at 15fps @2160p. Which is just a frame or two less than the 6700XT (PS5/XSX GPU equivalent). How the hell is that better performance? What do you think you would have to do to run the game at 60fps at 2160p on the 2080? Yup, you guessed it, reconstruct the hell out of it.
I think we collectively would be doing better if we called out what is really happening here as opposed to just dismissing it and taking unnecessary digs at consoles.