Finally, with this option my phone is crunching on charger through the night and I am satisfied. But I have two more questions, is it possible that if I enable more cores on my phone to crunch (6/8 instead 4/8) that each task need much more time to complete? I saw this because MCM task need 7 hours to complete with 6 cores enabled. When I have half of cores enabled, task need only 5 hours or even less to complete. Crunching is slower with more cores enabled, is this true?

Second question is with crunching on battery when phone is not on charger. When I am not using phone for 5-10 minutes, phone is not warm on the back and when I click on Boinc app, it starts again. In settings I enable that Boinc has no restriction but it doesn't help. I don't know what else to do, every time screen is of, Boinc stops to crunch after few minutes that I am not using it. I am not using any battery saver and I don't see any other option in settings to prevent this behaviour. Only thing that is working is to have screen on for whole time but battery in this case is draining very fast.