I currently have Jandy FloPro FHPM1.0 pump with a single speed century motor. The motor seems to be getting louder and I'm thinking of upgrading to a dual speed or variable speed. My system has a analog timer and a Jandy AquaPure salt system. No other digital controllers or programmable features. Do you recommend upgrading to a dual speed or variable speed? Can you tell me what motors would replace my existing motor and what other items I would need to purchase with the new motor? I have added pictures of my pump and motor labels.