I did notice that pages are faster, but I did notice that at first, when i first rebooted after the installation and first running safari was significantly slower.. Rebooting and loading and everything was REALLY slow (compared to previous reboots ... like an additional couple (2-3) minutes to reboot than what other updates or standard reboots i have done) I thought something was wrong, but then it worked fine. Rebooted again just to see if it was just software update doing that, and it rebooted, extremely fast, but when i started safari it was giving me the pinwheel and 5-10 bounces but then closed it reran it and popped up right away. it was just weird that my machine (with nothing started . . .) would just randomly slow down, when it has never done it before. but now that it's up and running the internet is fast and it's not that slow anymore.