Working in Blender myself as we speak - I pretty much always tweak simmable cloth (for Poser) in Blender, if for nothing else, than to reduce the gargantuan boob-allowance modelled into tops. Poser's figures tend to have Barbie-proportions, which lends not much credibility to Poser art, unfortunately. I use proportional edit a lot as well as the sculpt/smooth tool. Occasionally I'll even import a scene from Poser to render in Blender because of the vastly superior material spectrum (Cycles blows Firefly out of the water, totally) although this involves a serious amount of work for a scene.

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