What determines the speed of antivirus scanning?

Question

Computers

Hello. There is a gaming powerful PC.
And the hard drive is 5Tb, there is an SSD under the axis on the tseshka, but on the hard there are various rubbish, games, movies, files, archives, well, let's say a lot.

I have always wondered what determines the speed of antivirus scanning of a PC?
There is a paid license of Kasperych, he kapets how long he checks the entire PC.
Is there any way to speed it up? Somehow give all the resources to the antivirus, so that the percentage and the operative or even the vidic help Kasperych quickly check the PC for viruses.
Before that, there was an old piece of iron from 2005, Casper checked 1tb a day, or even two, well, for a very long time.
Now it seems like the iron is already modern, and one fig checks for a very long time.

Answer 1

from the speed of the Internet
, connect to a 10Gbps channel, preferably in the USA, check it out))