I'm currently at 40 walk skill, 15 boots and 130 walk level and I agree - eyeballing the numbers, it seems to be about a 50x debuff between rooms 8 and 9. Was wondering if that's intended and if so, what the logic behind it was?
Enjoying the game otherwise, I do wish there was somewhere I could see the total multiplier (level+equipment+upgrades) on each skill though.