The Mac OS X Client's absymal performance is a joke.

[Avenger]

Good point that there are Square Enix games that work fine on Apple hardware like iPads, which also use OpenGL and OS X. It is not an impossible task to deliver a game that actually works well on OS X (indeed Blizzard's games work just fine as well.)

Surely it's not too much to ask for a Mac FFXIV client that actually delivers decent performance.

The decision to go with Transgaming/WINE rather than a native OpenGL Mac port seems to have led to abysmal performance, and it's hard to imagine anyone at Square Enix would think was anywhere close to meeting their standards for quality and performance.