Mouse and keyboard are as standard and supported as they can possibly be, and the official Raspberry Pi ones are ordinary USB ones supported everywhere. Touchs

Mouse and keyboard are as standard and supported as they can possibly be, and the official Raspberry Pi ones are ordinary USB ones supported everywhere. Touchscreens supported in Linux are supported well out of the box as well (e.g. my Dell ones). "100 times slower" sounds like nonsense to me; huge numbers of people are motivated to make software faster, so if there was that much room to improve, it mostly would have happened already.