u/Dababyhuhlessgoo

I recently went from a k3 foot to a k4 with hydraulic foot with a cosmetic leg shell but with the new leg after using it for a few hours it gets unbearable to walk on and it feels heavy and the foot feels super stiff very much like my very fist prosthetic a few years back, does anyone know if it could be too heavy or is the foam cosmetic getting in the way of the ankle? Thanks !