Ok so I know before you start in on me, yes I know it is just a Beta and not perfect and expected the usual amount of slowness, lagging, and glitches, but this has been worse than any other Beta I have ever tried out. I am currently running Public Beta 2 of El Capitan on my 2011 13" Macbook Pro. Initial installation of Public Beta 1 went smoothly and no major issues. But when Public Beta 2 and several recent updates went through he installation process and then it restarted, restart took forever, atleast an hour, and it kept getting hung up and I would have to power down and power up again. At one point it went through and popped up with a screen asking me to log in with my Apple ID and the background was changed to the new El Capitan. When it did this it again became hung up and I had to power down and power up again. When it came back, everything was back to normal and I was not prompted by a window asking for my Apple ID again. Once I was seemingly back to normal it still was painfully slow and lagging throughout the OS and using applications. Is anyone else experiencing this? Again I know its a Beta and I was not expecting perfection but this is rough.