Yeah just like the title.Is theere any mods wich allows daggerfall to run smoother?
Try changing some settings in DosBox, for instance setting the cpu to "dynamic" helps a lot. Also, try setting the cpu cycles to something like 30000-40000 (I wouldn't go further than that because if the cycles are too high, the game starts lagging considerably, at least in my PC).
And allows better graphics etc?
No, or at least not yet. By that I mean that there's a project which aims to remake the Daggerfall engine (http://xlengine.com/), but unfortunately it's still in its early stages and the game is barely playable (no NPC dialogues, no quest system, etc.) - actually, the project is FAR more than a "simple" graphical overhaul, since the creator wants to implement all the planned features which got cut from the final game.
Your best bet to enhance the looks of the game would be to enable anti-aliasing in dosbox by setting "opengl" as the render with "advmame3x" in the scaling options.
render distance and much more?
This will be featured in DaggerXL, but for the moment you're pretty much stuck with the default view distance.
EDIT: just found http://theelderscrolls.wiwiland.net/?title=Daggerfall_:_EyeOfArgonia_EN. Never tried it before, but judging from the screenshots it looks like it does make quite a difference.