In the Patch Notes of v1.0.6 there's the following statement:
Fixed an issue that would cause your screen to occasionally freeze and cause unwarranted CPU usage.
Unfortunately, the game still freezes for me for 2-3 seconds at any time. This is NOT related to the reported lag or not able to use any abilities in combat or whatever. This happens every 5 to 10 minutes for me and it does it at every single level of graphic detail (very low to ultra).
All add-ons I have installed are up to date and all graphics/sound drivers are up to date.
I have Wykkyd's Framework installed and on the integrated Barzgirms Toolbar there is a FPS counter, when the freeze is over that counter displays either 0, 1 or 2 FPS for less than a second and then returns to the normal FPS value during play.
I was surprised to find a supposed fix for this issue in the v1.0.6 patch notes, but sadly that fix doesn't seem to have fixed anything at all