So far, CPU definitely improved. However, two showstoppers: 1) Network card cannot obtain an IP (both with Realtec and Parallels mode) 2) Windows decided it needs to activate itself again. Unless I find a workaround in the next 10-15 min, I'll have to revert ...
You might want to restart your computer if you have not already done so. Some significant changes were made in this update and it is likely that OS X caches the kernel extensions and needs a reboot to bring them up-to-date.
