Update idea:

Instead of nerfing melee and health regan speed beacuse theyre too overpowered just add a conter like:

Against melee: a shield that blocks 1-5 hits (depending on melee class)

Against Health regen: just add a poison arrow that makes the same damage over time.

Btw then we could have 3 different fearless arrows:

The travel speed arrow (the one thats in the game already)

the stun arrow 

And the poison arrow