The Lips 0.6.0 release is about half as fast as the current development version. Luajit gives a big boost, and scripting system cleanups give it an even bigger boost on top of that. Minimizing the amount of voxels onscreen also boosts the speed. Because the rendering engines are the same, there shouldn't really be any large difference between non-voxel and non-script related performance.
Unfortunately we won't see a new release until Nekotaku finishes his thesis.. Or he has a lapse of judgement, and decides LoS is more important :P (however I can use the new code to make a OD-LOS repo next year around Feb)