One shouldn't put anything past apple these days. Why not make any non apple ssd perform like crap via flipping an os wide switch? Users should know better than to upgrade their computers with much cheaper, much better ssds instead of paying the apple tax.
I don't know why this got downvoted. It is the absolute truth. Just check the benchmarks of the overpriced crap SSDs Apple puts in their Macbook Airs (and other Macs), and compare them to the others.
I'm sorry, but the SSDs Apple puts in their machines is pure CRAP.