100% CPU delay after every confirmation

I’m using Comodo Firewall 3.8.65951.477 with XP SP2.

Whenever I respond to any notifications (allowing, designating a trustworthy program, or switching to installation/update mode), Comodo causes CPU usage to spike for about 15 seconds. Naturally, during that period my computer is practically unusable. Afterward, everything returns to normal.

Is this normal? It certainly seems a bit extreme. I don’t remember earlier versions exhibiting this behavior.

Welcome to the Forum, Dph
This is normal. Please see this thread for more information.