Nope
You got it done, you didn't keel over..that's the speed to work at. It's neither slow nor frast, it is "just right".
Why reinvent the rat race for your own firewood? I work to the point it is good exercise, but not past that. There ain't no medals awarded for doing your own wood, and you got a whole year season to season to get it up and stacked.
When I chainsaw I go slow and careful, when I hand split sometimes I like to let it rip, that's my "woodrobics" workout. 10-15 minutes, that's it, but I do like that almost every day when I have the time. I feed the dogs then and that is as long as they want to wait with eating then off the chains and out for a walk and ..dog business.
Sometimes I like just getting medieval on horrible nasty pieces, I'll stand there as long as it takes, I'll whack them into splintered submission eventually. Ya, easier to go grab a saw and noodle them up, but not near as much fun....although I do get some where the dang wood wins, despite my best viking with a battle axe routine....grumble....throw em on the bumer pile for "nest time"..but ya know what? No matter how freaking nasty a chunk of wood has been..eventually they all wind up somehow in small enough chunks to go into the heater. Might take me three years with a chunk of wood, I don't care, eventually they be cleaved down.
When I have run a power splitter, I just do it all right then. Every round waiting, just keep at it until done. Production rate, who knows, too many variables, some stuff splits like a dream, other stuff strings together and is a PITA. It's just easier, just lifting and tossing, doesn't seem like much sport to it. Hand splitting is much more art and finesse combined with getting physical. Power splitting is just grunt work. (to me, just sayin')
Wood to me is *fun* just as much as it heats the cabin and keeps the pastures shipshape. Just plain fun, love cutting and splitting! I hardly ever am glad I have to stop, it doesn't seem to tire me that much. Always planning my next foray to go get more...like "when between which other projects can I slide in more cutting"? It is about the number one thing I look forward to outside, it's #2 really, I admit I like sneaking off and thrashing the shoreline with some crankbait and hauling in bass.
Really,if I wasn't doing this general farm job, I'd like to run a small wood business (still doing rescue dogs and cats though, they are family so it don't count as work, and it sure ain't a business, just costs tons of money). Sell different types of wood, cordwood, cook wood, pulp, saw logs, don't matter, just whatever I could get and move, then on off days like rainy days and stuff, do some custom furniture with the wood like I used to. Guess that means I would be doing some milling as well.
My number 3 is gardening, but ye aulde ladyee likes doing that so much I leave it mostly to her. I'll run the tiller a few times a year and haul and spread some manure for her, after that she does it all.