Varispeed Pumps

I am going to replace the pump  with a  varispeed   My  pool is aprroximately  15,000  gallons and I am located  in  central Florida.   Currently, I run  my  pump 4 - 8  hours a  day depending  on  cuurent  weather and usuage.   In  the cooler  months less run  time.  On / Off is  controllled  by  an Intermatic Timer.

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When I install the  varisppeed  pump should I eliiminate  the Intermatic Control, and rely  the program options  on  the varispeed pump ?    I would appreciate  your  input  and guidance.    JAyB