Can't there be such a performance mode in every game?

I mean the one in Fortnite. A friend of mine showed me that he can get 500/600 FPS in this mode. I tested it on my PC and had 450 FPS. Now comes the blatant. I once installed the game on my very old Office PC from 2011. Intel Core I3 2120, 4GB RAM, Radeon HD 6450. The game ran in 40FPS. And even if that's not that much: The PC didn't even manage GTA 4 properly in low settings. And I think that's awesome. Can't there be such a performance mode in every game? LG

The number of really professional players for whom frame rate is so important doesn't exist. The video game industry is now also leaning more towards graphics than gameplay. Since the performance mode mainly compromises the graphics, it doesn't make sense for most games. The games for which such a performance mode makes sense usually run without problems on almost any computer.