Hi DavidR,
Just switched to avast! FREE Antivirus (As My License Got Expired for AIS, Two Days Ago) and COMODO Firewall. Now my PC doing really great… I have no problem with performance and browsing yet. Hope this will be a good mix. Let’s see…
AND I checked my processes and CPU usage when I have AIS, but couldn’t find any critical processes or Peak usage of CPU…
Do you have any recommendations mate?
nice to hear from you…
Thanks AGAiN… 
Cheers…