[belorn]

I would say that a primary reason to do it slowly is to not put too much pressure into it, which is true for both women and men. The p-valve involving gluing it on your body, and the tube is soft which can easily get kinks. It can balloon and there is always the risk that the pressure find an alternative way that is not the outside of the drysuit.

I do not find it too uncomfortable myself. The fear of rapture is fairly major one, especially the first time of a dive when your trust in the glue are a bit low. After that you can increase the speed a bit.