#1 - Oct. 8, 2012, 1:47 p.m.
If you are experiencing unusually slow performance while running the Guild Wars 2 Mac Beta client, be sure that your operating system is fully updated.
If you continue to have problems, consider resetting the System Management Controller (SMC). Complete instructions for how to do this can be found in this Apple Support knowledge base article:
http://support.apple.com/kb/HT3964