Running hot after mountain lion install

Hello,
I just installed Mountain Lion last night. I had no issues at all. Checked out some of the different new features and all seemed to work fine.
But this morning after I turned my MacBook Pro back on is where I noticed something odd. I was using messages and also Safari. It was working great. My baterry was at 99% when I first turned it on. After about an hour of use I noticed the battery down to 67% and that Safari was not running as quick. It's not that it was not responding just running slow. Real slow. So I turned it back off and let it sit for a half hour and started it back up. Seems to running ok now. I even have a few programs open as well as the last time.
I just wanted to post here to see if anyone else had this issue. I think it's isolated and maybe some things didn't boot enough after install. Thoughts on this from anyone is greatly appreciated. Again it is runing fine and the slowing issue does not seem to be there now.
Thank You

Yes, me too. My Activity Monitor shows Safari Web Content absolutely destroying the CPU, exceeding 100%. Slows the whole system up just browsing.
Just compared browsing a facebook album in Chrome and Safari 6. Safari crawls through it with the CPU jumping immediately to over 90% while Chrome's processes barely ever reach 20%.
Also read this which suggests Spotlight's indexing is a potential cause but on my MBP (late 2011) Spotlight isn't shown as active:
http://gigaom.com/apple/is-mountain-lion-too-hot-for-your-mac-to-handle/
and also the CPU only runs hot while on Safari. Processor-heavy XCode consistently runs fine.
Assume a Safari bug. Anyone else experiencing this?
UPDATE: Restarting Safari makes a massive difference both to the real memory and the %CPU figures.

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Running hot after mountain lion install

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