How do I disable the automatic update of text layers when I open a .psd document? The problem is that when I open big .psd files, this update lasts very long and wastes me a lot of time.
Further to Lauren's answer and the comments... I disagree that "a faster machine isn't an immediate priority". If you are regularly opening large PSDs that are generated by other versions of Photoshop, and these files regularly cause time-consuming updates when they are opened -- a faster machine is absolutely a valid priority.
You may not have other business reasons to support the upgrade investment, but if slow Photoshop is wasting your time... well, isn't that reason enough?