If you're looking for nerfs:
-Bows are probably a bit too strong. In particular, archery potion is +20% and multiplies total damage output (so doesn't just stack, it's even stronger). As well, magic quiver, molten quiver, and the other quiver all stack. I think nerfing archery potion to +15% or even +10% and removing the quiver stacking would still keep bows one of the strongest weapons in the game, but make them a little less dominant.
-Gravitation potion in cavern layer chests and pots makes it really easy early on (before any bosses) to just fly through the world looking for floating islands and getting both wings and the Starfury (which can annihilate most pre-hardmode bosses, including wall of flesh). I don't think it would be too much of a change to restrict gravitation potion to underworld pots and chests and dungeon pots and chests, since there are a lot of other ways to make it to islands early that take more effort/skill to avoid harpies and fall damage.
-Bows are probably a bit too strong. In particular, archery potion is +20% and multiplies total damage output (so doesn't just stack, it's even stronger). As well, magic quiver, molten quiver, and the other quiver all stack. I think nerfing archery potion to +15% or even +10% and removing the quiver stacking would still keep bows one of the strongest weapons in the game, but make them a little less dominant.
-Gravitation potion in cavern layer chests and pots makes it really easy early on (before any bosses) to just fly through the world looking for floating islands and getting both wings and the Starfury (which can annihilate most pre-hardmode bosses, including wall of flesh). I don't think it would be too much of a change to restrict gravitation potion to underworld pots and chests and dungeon pots and chests, since there are a lot of other ways to make it to islands early that take more effort/skill to avoid harpies and fall damage.