High CPU on UC500

I have just done an install on the UC 520 platform and had a couple of questions. First I am running the newest IOS 124-20.T and SSL VPN did not work. I had a TAC open and we could not get it to work. One thing I noticed that when I attempted to log in, my cpu spiked to 100% and the crypto thread was using almost 99% of the cpu. After a couple of hours I finally got an engineer that told me that as of 3 weeks ago the SSL VPN is no longer supported on the UC. I took the config of the SSL VPN off and my CPU got somewhat back to normal but still in an hour, I could still spike to over 70%. I only have 18 users on this utilizing a CUE, firewall, AA, ect......just a normal UC install. Has anyone else seen the abnormal high cpu?

Mc