Install KODI


I’m trying to install kodi on top of my RPI volumio.
I installed it from debian repository, and can execute kodi-standalone and it seems to work!
LIRC works too.

But now, I’d like to remove the little rainbow square that blinks on top-right of the screen.
Does anybody has an idea how to?

Second, is there some “tweaks” to improve video quality and general speed? (overclocking, config files, …)