Hello and welcome shukla haven't had time to have a go at the 13 yet I have been as you will have seen KIS for years now and my licence is just about out on my mian machine.
So tell me did you have 12 on already/ and if so are you using the 12 config for the 13. If you are - just the defaults or your own preferences?
If you are using the default then if you like I have a config that might interest you that was developed by a fellow I know who done a fair bit of collaboration with Kaspersky takes a bit of setting but once done - all good. The config is good for 13 even though I am still using 12 it is not a lot different.
As for performance it doesn't affect me. PM if you like