The conversion quality settings in the CrossDresser affects how well clothing items are converted to new figures. Low is fast but will not work for more complex items, and high is slow but will work for all items.

Here we have Daz's Morphing Fantasy Dress for V3 converted to Aiko 3 on all three settings. The object for this clothing is fairly simple with no detailed modeling, and the conversion quality is about the same for all three quality settings. For a clothing like this, the Low setting would probably be enough for a good conversion.

Here we have BAT's Kawa Rev 5 R2 for V3 converted to Aiko 3 on all three settings. The object for this clothing is highly detailed, with lots of edges and intricate modeling. As you can see, the conversion suffers quite a bit on the Low setting, with a lot of jagged edges and squashed geometry. However, on the High setting, all of the artifacts disappear, and the converted clothing has the same quality as the original clothing. This is an example of a clothing that would require the High quality setting.