That’s unusual that they would feel slower. Normally Pomoca skins are slower to start, ideal after ~20km or ~4,000m of gain, and then they slow down late in life when the felt is wearing off. Perhaps it’s the snow conditions that you mention? Dry snow is definitely faster.
I’ve used the 2.0 Grip as well, and they seemed to have the same life cycle, although not as glidey as straight up 2.0.
I never wax my skins during training (can’t be bothered), but I always wax them for races. I rub on a wax that’s appropriate for the temperature and then iron it in. Rub the wax with the direction of the felt and keep the iron moving fast, just enough to melt it.
This’ll give you an idea: https://www.instagram.com/p/Buy9HNGneCe/