Hmmm, that's a shame, though understandable. If we could import animated figures or use the physics in Poser then that would be awesome, but it seems there's a big gap in the Poser software allowing for realistic cloth dynamics. Maybe I'm just doing it wrong, but I've never managed to get dynamic cloth looking smooth, no matter what I try.

There are methods of which you can make work arounds for this.

In this image: Cloth

The cloth is simulated in MD, but the cloth it self were designed to fit V4 in a T-Pose, so there are ways to do it, however keep in mind that MD even though its faster, when you are simulating with animated characters the simulation time goes a lot higher, so its not insanely much faster than doing it in Poser. The biggest benefit using MD for simulating i think, is the flexibility meaning you can always adjust your cloth real time or while its calculating. Where as in Poser you have to simulate and then see what the result is like.

But Poser simulates cloth rather well i think and if the cloth is made correctly you can simulate it quite quickly with good results as well. The biggest problems with Poser simulation settings is that a lot of settings are fairly difficult to work with, meaning the values them self doesn't give you a good indication of what they should be for a given type of material.

For instant Cotton, Silk, Leather etc. The only thing you can do is change for instant the fold resistance, but whether it should be 35 or 350 is not very clear.

The second biggest problem i think, is the lack of a way to set a initial cloth state. For instant a person that is sitting down and then get up, the cloth will behave differently than, for instant having to do it so the person starts in the default T-pose then sit down and finally going for the final pose of getting up. Unless you are using a lot of frames for the whole simulation, the forces on the cloth will be wrong. Besides that no one want to simulate 200+ frames for something like this.

Last Poser seems to have a bit of a hard time working with rigid objects in the simulation, so improving on that would be nice as well. But even with these issues, you should be able to get smooth results using dynamic cloth in Poser i think. Otherwise maybe you can make an example showing what issues you are facing?