So far After Effects cc sucks. I have an i7-4700MQ 2.4GHz with 32 gig of ram and a 256 SSD with 130 gig free. Everything I do has a lag. If I open a project and click on the timeline if takes up to a minute for the monitor to update. I wait for the computer in case it is running background, come back 20 minutes later and the same thing happens. Everything else I do on the computer is lightning fast but After Effects performance blows. I have used many versions of AF and have never had this kind of issue.
AF cc should be a beta version. I am surprised that Adobe would release a program in this condition then have no idea what we are complaining about.