I had a similar situation before that I think I can understand your situation.
Yes I also agree with others that ClamXAV is a free software and regit to eliminating all issues.
And my experience says that beta-macOS has been known to be not compatible with any commercial anti-virus available:
they all are in eagerness state: more aggresive than ClamXAV.
And I don't think it would be beneficial to have such any anti-virus software on macOS which can be a moot point to others.
However, as an experienced user and game software engineer using macOS for more than 9 years, I can say this with assurance.
And from the beginning macOS had a sorts of anti-virus software in its core.
I used to more care about ad-ware, not viruses.