So I realised that every swords and axes did the same damage no matter what they are made from and had the same cooldown (I'm not a 100% sure about that but axes have a faster cooldown than before). I didn't know if it was just visual so I tested and it's not just a visual glitch (they all do 4 damage when not enchanted).

Hope it can be fix and good luck (love your work by the way)