Length of time to scan

I’m a newcomer to Comodo (from AVG). A ‘My Computer scan’ takes nearly two hours. Seems a long time to me. Is this normal? And if not, how can I speed up the process?
I have a 40Gb hard drive with 2Gb RAM.

Try Scanning on these settings as in pic below you can even lower 40mb to 20mb or if you want to speed up scan
you can also config CIS from here

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That’s not right. Shouldn’t take 2hrs to scan 40GB under any circumstance. i scan a 1.36 terabyte external,and an 222GB internal in a lot less that that.

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an old processor or lack of ram may be the bandit ?