I have Bitdefender for MAC. On the 1st go the virus scan ran for around 30 hours before it stopped. Since then, every time it runs, it does the whole lot again. Surely it should only do what it hasn't scanned already? It also badly slows my computer down so I can't do much else at the same time.
Is this what the virus checker should be doing each time? If not, how do I fix it? If so, then it ###### - 30 hours every time is just ridiculous.
HELP! 
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