@Romu

At the moment, you won't find significantly better performance on the Nexus 5 (or any Sailfish port) than the Jolla. Both on the Jolla and other Android phones, Sailfish itself and native apps simply can't harness the performance of the hardware (I suspect very poor task scheduling).

Main reason to use Nexus 5, if you don't need Alien Dalvik, is the vastly better screen and the 2GB of RAM (which does remove the still major OOM issues on the Jolla).