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<blockquote data-quote="roger_m" data-source="post: 948673" data-attributes="member: 31436">I can&#039;t speak for others, but I do notice a huge amount of difference in the performance impact between some antiviruses.&nbsp; That hasn&#039;t always been the case, but it has been for a number of years now.&nbsp; With some antiviruses, my computer runs just about as well as if I&#039;m running no antivirus at all.&nbsp; With a few, my computer runs significantly slower and with plenty of others, it&#039;s somewhere in between.&nbsp; In addition to that, I find that some are very light a lot of the time, but on occasion cause slowdowns due to high CPU use with not apparent reason.&nbsp; There are very few antivirus which I find are extremely light pretty much all the time.Maybe if I had a much faster system, I would not see that much difference.&nbsp; But since I don&#039;t, I need to choose my antivirus carefully, so I don&#039;t get unacceptable performance drops.</blockquote>

[QUOTE="roger_m, post: 948673, member: 31436"] I can't speak for others, but I do notice a huge amount of difference in the performance impact between some antiviruses. That hasn't always been the case, but it has been for a number of years now. With some antiviruses, my computer runs just about as well as if I'm running no antivirus at all. With a few, my computer runs significantly slower and with plenty of others, it's somewhere in between. In addition to that, I find that some are very light a lot of the time, but on occasion cause slowdowns due to high CPU use with not apparent reason. There are very few antivirus which I find are extremely light pretty much all the time. Maybe if I had a much faster system, I would not see that much difference. But since I don't, I need to choose my antivirus carefully, so I don't get unacceptable performance drops. [/QUOTE]

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