My first thought is the wireless connection (your connected wirelessly?) is iffy. It would never be as fast as wired, and wired would never be as fast as a local drive.
Thanks Peter. Most computers are wired (though a couple are wireless). The issue is the same for both.
I just don't understand what changes after moving them back to the NAS.
I understand that it will be slower to open on a NAS vs. local, but would it also be slower during use?
If ID needs to go back to the network to load something else into memory, that's going to slow things down. I'm not a network expert, nor do I really know what gets loaded into memory (the total amount of RAM is actually irrelvant once you get to the point where ID is using the adressable limit, just under 4 gb for CS6 which is still 32-bit) or how big your file is, so I don't know how much swapping is going on. The speed of the drive in the NAS is also going to be a factor.