Clothing acting in strange ways

MuzMel

Hello. When I move around on the viewport, my model's suit develops poke throughs everywhere. When I stop moving, the poke through stops. It looks exactly like when you add collision and smoothness simulator, except that I haven't messed with those settings and they're at the default value.

 I've used this model and this clothing before without issue. The only change is that I've added something called "Fit Morph", which adds fitting morphs. I don't think I can blame this either, because I've used it before without any problem.

It's also bloated my scene save file. It's a scene with one bald gen 8 character with no background or props, and taking about 110 MB of space

Spacious

Your obsevation that it looks like it's removing and then adding the smoothing modifier is exactly correct.  DAZ suspends those operations as you're changing your viewport orientation.  It's standard behavior that it sounds like you've just never noticed.  Possibly it's also suspending the "Fit Morph" as well, and that's why it's so noticable now.  I don't have any experience with "Fit Morph", but if it's adding any kind of morph or adjustment to make clothing fit better it would definitely add to the overall size of the scene.