• Not 100% of the computers are supported. When the interface is slow, it is because your graphical cards is not supported under Linux. If the computer includes an Nvidia card, you can enable it (see here) otherwise, there is nothing to do for this computer

  • Some computers are "secured" to boot only on the Microsoft Windows system. Go in the bios/efi setup and disable secure boot?

  • No. The batocera.linux team think it would be nice for non technical users, but batocera.linux includes software which cannot be associated with commercial activities. (example: https://docs.libretro.com/tech/licenses). Of course, including extra illegal content is totally forbidden and discouraged by the Batocera.linux team