Noticing the same (high CPU for both processor) but I admitt loving the new status display on the front page.
Might be related but my speed, even over wired LAN, is taking a hit on the internet. Internet speed directly with my provider's speed test is impacted. download is around 20mb while it should be 30mb. upload is around 7mb while it should be 10mb.
I also noticed that if you ping the public IP address it responds to ping even dough I have set not to. It never responded to ping before. ANother bug?