How good is the game engine of FFXIV?

[Dyvid]

Doesn't the PC version already have settings that the PS4 doesn't? So why can't the PC settings have options such as those possible with the mods in it?

Well to be honest, those mods are snake oil (been playing RDR2 alot). The "HD" photos are just shade tricks to make it look better. All it did was darker the lines to make it look more pronounce, not a actually polygon improvement. Here is good example of what I mean, FFXIV PS3 vs PS4. You can actually see the detail changes because the console is rendering more polygons faster giving it a cleaner, clearer look.