Version scan on access slowing down Mac

Hi all,
I am new here. In the past I have used Comodo AV on Windows and I was very pleased, because it was a great app.
Now I am using Mac and I have installed Comodo AV on it, but I noticed that when scan on access is turned on my Mac is terribly slow. When I turn it off, everything works fine.

Did someone notice some similar issue?

I forgot to add, that my OSX version is Catalina: 10.15.7. My hardware are pretty good I think, so that can not be a problem: CPU: Intel Core i7 2,7GHz, RAM: 16 GB, SSD 512GB.