You might make sure that's not ROM related by flashing stock ROM and look how it behaves then.Hello, I've been using the firmware for a month now. Everything was on the way, in recent days the tablet is not charging well. Yesterday I stopped charging with the screen off, turned on the developer mode so that the screen does not go out when charging. It charges very badly, I do not want to return to 5.1.1. I made a backup
As you made a backup you can easily restore lineage and your data afterwards.