Above Ground Two Speed Pump

I am getting ready to replace my Hayward Power-Flo LX series motor and pump and trap basket. I currently run a 1.5 horsepower motor with a 200lb. filter. I am wondering if there is a Hayward Power-Flo LX series two speed motor with pump and trap basket? I am thinking I have a bigger motor than is needed for a 200 lb. filter and could save some money by going to a two speed pump. I know nothing about two speed pumps.
Can someone give me some information on two speed pumps in this application and how they need installed to run both speeds and if they aren't available in 115 volt should I just go with the 1HP motor instead of the 1.5HP. I am trying to save on my electrical bill and get my pool as clean as possible.
Any advice online where I purchase this online would be helpful.

Thanks

A great informational site is Poolplaza.com. They sell pumps too, but have a lot more information than other sites I have visted, including Hayward. I'm not connected or pushing the site in any way, it just seems to have a lot of good info and is a good place to educate yourself about pumps.