In the current pre release, copper spears have the exact same jab damage and charge multiplier as a stone spear, but has harsher cooldown times.
This leads to the copper spear being a strict downgrade to the stone spear in every way, when it's meant to be an in-between of stone and iron. It should be an in-between just like the other copper tools.
A simple change to 2.5 spear damage would remedy this issue and make the copper spear behave like every other copper item in the game.
Can confirm. All other copper items match stone in terms of attack damage and attack speed, so copper spears should match stone spears there. Because this creates a larger gap in attack speed between stone/copper spears and iron/golden spears, perhaps all other spears could have their attack speeds brought up (iron/golden has old copper speed, diamond has gold iron/golden speed, and netherite has old diamond speed). This would help jab attacks be less outclassed by charges with the pre1 change of allowing repeated charge attack connections.