The 044 is a fast saw. The problem I suspect you're facing is a heavy hand. The newer, high RPM saws, require some skill, both in keeping the RPMs up, and the chain sharp. The old torquey saws could be pushed through a cut even with a dull chain.
The other thing that's going on is your perception of how fast the saw is cutting. It's like rididng a Harley. It seems real fast until a rice burner flies past you like yor standing still, while you're at full throttle.
Set up a log, do some timed cuts, or race a buddy. In wood less than 24", the 090 doesn't stand a chance against a 440.