DoF and PostFX will not kick in by default, you need to set those manually.  Not enough pixel sampling might be the culprit but without seeing render settings, that won't be easy to judge.  If you still use the default image_Map node to load your textures, change the 'Filtering' at the bottom to 'Crisp'.  

Again, are you optimizing your Superfly render settings and using CPU or GPU?