CIS causes freezes in online games

I’m using firewall only from CIS package.
After the last update to 7.0.315459.4132 I’ve noticed some freezes in Elder Scrolls Online.
First, I thought it’s game engine specific and didn’t try to do anything. But later those 3-5 sec freezes began to appear more frequently with interval up to 20 secs.
I started to shutdown running applications one by one and noticed that CIS service (cmdagent) utilizes 25% of my CPU (i5-2400) though previously I stopped firewall through GUI.
After I disabled the service all freezes gone.
I didn’t experience this issue with previous version.