I'd love to install 10.11 on my iMac, but I don't want to spend countless hours re-installing all my apps and files. However, I do have a lot of crud on the machine. I've never restored from a Time Machine backup, so I'm not even sure how the process works. So... has anyone restored from a backup and is it still blazing fast as it is on my 2010 Macbook Pro? Thoughts? Thanks!