Something is wrong with your saw. You need to take it to a good dealer and have them check it out. A 441 CM dead stock imho will outperform a dead stock 372XP, we've ran them head to head, it's close.
It should handle a 24" bar in hardwood with ease, my does.
I'm sure you've burned more than 15-20 tanks thru it in six months, as it takes that many for it to really get broke it. I run nothing but 91 octane gas and Ultra at 40:1. It should run and perform very close to a stock 460. My 441 handles a 28" in hardwood just fine, a 32" is getting to the point it does pull the crap out of it, but let it go at it own rate and it will suffice for many users.
I suspect something isn't right. We've got a ton of them out with loggers and they love them. We sell more 441's than 460's. The 441CM is definetly stronger than my 044.