Replacing single speed 1hp Pentair Challenger pump with vs Hayward

Not sure how to size the vs replacement for the Pentair Challenger 1hp. It’s listed as a “High Flow” pump. Here’s a few basics to get you up to speed.

18 x 34 Gunite, approx 25,000 gallons, single skimmer, Pentair 60gpm sand filter, fountain, slide, no pump driven pool vac

Current configuration will not allow pool jets, fountain and slide to operate simultaneously. Would like to be able to do this. Also debating moving to a cartridge filter while replacing pump. Would like to hear your suggestions for both. Would like to move to Hayward as we may employ the Omni hub  system as well.

Thanks in advance for your help!