I don't see what SFOS "2.0" has to do with this. It's a collection of updated features, UI paradigms and refined animations. Jolla have never hinted that it will be faster or more optimised, or remove the crippling bottlenecks that the OS currently suffers from.

Edit: I updated the XDA post again, this time with Ubuntu Phone (on N5) results. UP & SF share Qt, QML, C++, libhybris and are both 'real' linux, so I think it's a good comparison. Problem doesn't seem to lie with hybris as UP has stellar performance.

http://forum.xda-developers.com/show...&postcount=383