OK, I admit that SystemShock work on anDosbox with similar performance to dosbox on Maemo, with correct settings.

By the way, andosbox is doing pernament framedrop (see sources) - normally, You can set this value in dosbox settings. This is how many frames dosbox skip (without processing) before drawing one. Setting 1-3 give quite a boost to performance, without much visible effects - higher start to being visible.

So, basically, Andosbox is doing framedrop constantly = constantly lowering output graphic quality, no matter if it is needed or not. That's all the "mystery". Sure, You may not notice it on Android device, but, why to use it, if You can set exactly same things on normal dosbox (or tweak it exactly to Your likings)?

/Estel