The scroll sensitivity can be increased if you increase the value on the settings profile (0- very sensitive, 1- less sensitive ....).
I probably can add the multimedia keys, but I need some help from someone with a bluetooth keyboard with those keys.
About the dependencies, the UI is made using Python-EFL, so request all the python-efl packages nothing else, when the app are a little more stable, and I get permission to upload the app to the extras-repo, the installation will be a lot easier.