[zaptheimpaler]

Try actually playing a modern Doom game and then a modern UE5 game or look at some benchmarks. UE games mostly run like shit, whereas Doom/idTech games are the smoothest in the entire industry.

[tapoxi]

Fortnite is UE5 and runs well on phones. There's a lot of studios who can use UE5 poorly, and not a lot using idtech poorly to compare against.