Problem with CIS 6.2.285401.2860

comodo internet security 6.2.285401.2860 cause slowness when opening a folder with files, either with the default settings or custom settings
something that was also noticed that the uninstall the comodo internet security service remains active (Comodo Internet Security helper service), it would not be what is causing this problem in the antivirus realtime scanning?
OBS: I have done clean install of CIS

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Does this problem persist with 6.3. I just tried opening my software downloads folder with lot’s and lot’s of installers and CIS does not go haywire. I am on Windows 8 x64.