So just to confirm,

When you load a Daz Original using DSON it loads fine(No Slow Down)?

(For example: Daz DSON Clothing onto a Genesis figure in Poser.)

 

The problem is when your trying to load a 3rd party clothing item onto Genesis in Poser using DSON? (That comes supplied with its own Poser Companion files?)

 

Sorry a few things in your last post left me a little confused.

Just trying to offer what help I can. Even though I found for the most part DSON causes more problems then it solves.