Unfortunately, it's the opposite, they are the slowest VAs out there according to this: https://www.av-comparatives.org/tests/performance-test-april-2018/
Making him wait for his work to end is worse than using my CPU and RAM. Now I must be honest, the performance is not related to the use of resources, but after a quick search, I found no comparison. I can use the Resource Monitor and compare it with other AVs out there, but I do not have time, so I leave it up to you to decide if it's a lot of resources or not.
Still, it does not change the fact that I have been running without an AV for the last few years without any problem and getting the full performance of my device. There were organizations and companies that ran audio and video systems that were fully equipped with the latest updates and were attacked with ransomware and other malicious files, do not you think this is fun? They were not even objective, it just happened that they depended on their AV and failed them.
It seems that there are not many interested in this type of topics.