Thanks :D !
If I had to tweak the encumbrance system, it might be better not to give a malus below ~20 loots. It should be annoying if you're carrying a lot of loots, to force you to drop them and plan an escape route, but there's no real point in slowing the player down when they're carrying few.
Nice score by the way, I think the best I've got while testing the game is ~70 + the idol.