Drying in an hour with no product does sound like high porosity. Some people are naturally high porosity. Go figure. Are you removing any water with a towel, t-shirt, or blow dryer when you do your drying time determination? If so, that test needs to be run from soaking wet hair, and allowed to completely air dry (no scrunching out the water). Drape something around your shoulders to keep you from getting wet from the drips.

If you want a scientific evaulation, consider a hair analysis from Live Curly Live Free, Goose Footprints, or Komaza.

Live Curly Live Free | the naturally curly hair experts
GoosefootPrints on Etsy
Hair Analysis
CG since 11/2011
2c /3a F /Mii, low porosity

Spring Products /Routine:
Clarifying: Herbal Essences Tealightfully Clean
Low Poo: Renpure Luxurious Argan Oil
Co-washes: Suave Naturals Tropical Coconut or Daily Clarifying
RO:
Tresemme Expert Selection Perfectly (un)Done, Cure Care, Suave Tropical Coconut or Daily Clarifying
LI (if needed):V05 Kiwi Lime Squeeze, V05 Strawbery
Renpure Brazilian Keratin Straightening (old formula), Cure Care
Stylers: LALSG
PT: IAGirl's as needed