I'm not speaking out of great experience or infinite wisdom, but from my really limited experience with trying to convert conforming to dynamic, then finally making dynamic cloth and simming that... cloth mesh design does play a major role in how an item is going to sim, particularly in Poser's cloth room, which has limitations compared to other sim-systems out there. This is from what I've read, my only 'experience' with another cloth simulator is Blender's, which has its own quirks.

For example: here I tried to sim an essentially magnet-driven prop dress... the mesh simply failed, Poser froze, it wasn't going to happen:

So, I ripped off all mesh under the empire waistline in Blender, re-did a very simple, quad-based mesh, UV-mapped, then imported into Poser. Made the bodice all one constrained group - it had always fit quite well, so I wasn't going to mess with it - except for the little bows which I made decorative, and the rest simmed really fast. Materials by KobaltKween.

Monterey/Mint21.x/Win10 - Blender3.x - PP11.3(cm) - Musescore3.6.2

Wir sind gewohnt, daß die Menschen verhöhnen was sie nicht verstehen
[it is clear that humans have contempt for that which they do not understand] 

Metaphor of Chooks