Welcome to the forum.
That combo is exactly what I have, virtually the same pool size wise too. My equipment is 13 years old however. Never any problems with the pump and only replaced the spider gasket in the multiport a couple times. Once my own fault. Had I known then what I know now and they were available I would have considered a two speed pump but have been quite happy with what I have.

The pump won't quiet down unless it is the seal or bearing making a noise then it may quiet as the bearing warms up. I suspect the noise is just normal though. You can do things to quiet it down. I mounted mine on a small board that is isolated from the main mounting surface with rubber bottle stoppers (Home Depo) to form a vibration mount. The pipes are also isolated using sections of straight auto radiator hose as couplings. This cuts noise and vibration conduction through the pipes and allows easy disconnection for winterization. Also reduces stress on the pipes.

Al

Edit: Here is the thread. Pics are in post 2.

http://www.poolforum.com/pf2/showthread.php?t=7054