No idea how to get the keyboard installed, without a keyboard, but i used xvkbd via apt-get to type @ since it is missing in my 3rd-level-less hwkbd layout. On Performance, the Nexus 5 is roughly 4 times slower in storage access than the Proš. Nexus 5 is 4.7Mb/sec read speed and Proš whooping 18.73Mb/sec according to sysbench. Jolla Phone was only 1.14Mb/sec. Memory speed is only a bit faster on Proš: Proš 403.3 Mb/sec Nexus 5 375.23 Mb/sec Jolla 1 195.15 Mb/sec Calculating prime numbers up to 2000 with two cores: Proš 3.77sec Nexus 5 5sec Jolla Phone 9sec Now half that time for nexus 5 with quad core and 1/4 the time for Proš with octacore should give a rough idea why xfce lags on Nexus 5.