As it says in the title bronze tools seem to have off the chart stats. The first of the stats that seem implusible is the enchantability rating. A good example of this would be enchanting a few paxels of different kinds. So i did. This is the result of enchanting two paxels of iron, two of gold (known to have high enchantability), and two of bronze with random level 5-8 enchants:
Iron: Efficiency I, Unbreaking I; Efficiency I
Gold: Efficiency II, Unbreaking II on both
Bronze: Efficiency IV, Unbreaking III; Efficiency V, Unbreaking III.
This also applies to other tools such as picks but does not seem to apply to armor.
The other stat that seem off the chart is the attack damage.
A bronze sword gives +10 attack damage, a paxel gives +13! A regular diamond sword gives +7. To me this seems a little op considering that bronze is actually not that hard to get...

Everything you listed on there is configurable, and the crazy enchantment rates have been fixed too.