3 hours for 1/3 cord? You definitely need to be more efficient. A fiskars splitting axe should easily cut that down to well under an hour per face cord.I try to do about 1/3 of a cord per day. An hour in the morning before other work, and an hour or two when I get home. (more of less until it gets dark)
Definitely not trying to hand split all day. Screw that
2 Fiskars in action