Very strong crackling and audio delay, what to do?

In the last week became harder to observe problems with sound in games, videos and music. I use external sound card M-audio Fast Track USB.

Conducted analyses, tests, and found that for some reason the antivirus creates a really wild delay his driver (see screenshot). I have ESS NOD 32 version 8, before that was 9, and the same is wildest stall and it is not clear why this is so.
I understand that you say "Change your antivirus to another...", but maybe it's a side issue, because recently all was well and no problems.

Without antivirus everything works better.

Tell me what to do, where to dig further?

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July 8th 19 at 15:39
2 answers
July 8th 19 at 15:41
I understand that you say "Change your antivirus to another...", but...

I understand what you mean, but for testing you can try to begin to temporarily disable antivirus. He, on idea, should not affect the sound, but you never know what the developers screwed up. I once stopped to run properly Visual Studio, made for curve update Panda Antivirus.
Given that updates of fire wood for a sound card in any case, occurs much less frequently than updating the antivirus, it is more likely that the bug is still in latest.
Another option is if you have Windows 10. There is sound all through one place, and the problem could appear because of an update some system component.
Well, Yes, I have disabled antivirus and even removed, things got better and the problems were gone. I have Windows 7 x64. - Ricky_Kloc commented on July 8th 19 at 15:44
Try to add driver files to the exclusions. - fletcher.Labad commented on July 8th 19 at 15:47
July 8th 19 at 15:43
Another noted that if the antivirus is running, then after some time the problem disappear no matter what I do, and then suddenly, at some time the delay again go. But antivirus isn't doing anything (not updated and no scans)

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