i don't care about the bad rep that Kaspersky gets, but it is a proven working tool. my pc is able to run it and my programs just fine. those that complains about sluggish performance are obviously using subpar spec'ed pc(unfortyunately that is true for most cases, hence kaspersky gets bad rep)

also, while it is just fine to just use without any AV installed, but one small slip up and gg your pc. so it's best to just have one in case. just because you you don't drive on unpaved road doesn't mean you can just not bring any spare tyres right?

PS : i read an article before that kaspersky spread a fake malware to trigger other AV programs. while this may sound like a terrible thing to do, but their reason was due to the other AV companies using kaspersky's research/database and not contributing their own.