Please go to Navigation > Scheduled Scan Settings.
Is scan using Minimal resources checked? That could slow down the scan.
Also: To not find Tracking cookies please go to Navigation > Real time scanning and uncheck Tracking cookies,
To find Quarantined Files, go to Navigation > Scroll down > Quarantined and Trusted Items.
You should find them there.
Thanks, Conor. I'll give your suggestion of unchecking the minimal usage box, although I'm fairly certain I had that same box checked in the the version previous to this one. I have my scheduled scans set up for 4am on Saturday morning and if it's done before 7-8am it won't impact my usage of the computer. I'll report back next Saturday with information on any improvement in the scanning speed.
As to your suggestion about unchecking the box for tracking cookies in real time scanning, I stumbled across that earlier when my Zap2it TV schedule wouldn't hold my preferred listings. I unchecked the tracking cookies box then, and it solved the Zap2it problem, but the next scheduled scan showed a problem with 203 tracking cookies and said I needed to deal with them. I'd prefer the scheduled scan to ignore tracking cookies the way real time scanning now apparently does. It's kind of alarming to wake up and get in front of the computer and be confronted with a message from McAfee in RED LETTERS(or background can't remember which) telling me there were 203 problems on my computer. That worked better than any cup of coffee would in waking me up! :-)
I don't think you can exclude things from Scheduled Scans.