OK. That model is the 1hp Up-rate standard efficiency Superflo.
Pentair info page
Manual
Here's an option:
Pentair 350088S with SWTCH SQFL 3/4 HPF 1A 60-Hertz 2SP ALMD Motor Package
Pentair 355067 Impeller Assembly Replacement Pool and Spa 1 HP Inground Pump
Seal and gasket kit at A1PoolParts.com
Check the manual, and confirm, but I believe those are the right parts to convert your pump from a standard (low) efficiency 1HP motor to a high efficiency 2spd motor - for around $250.

You'll want to run on LOW all the time, except when priming, vacuuming or backwashing. LO moves about 1/2 the water that HI does, but uses about 1/6 the electricity. Your flow will be much better matched to your pump -- and your water may be clearer as a result. Your electric bill should go down a bunch!

A couple of tips:

1. If you have a timer, you may have to put a check valve in the piping just ahead of the pump, so it doesn't loose prime when it's turned off. The Jandy check valve is available from Amazon and is a good choice.

2. You'll need to watch your backwash discharge. If you find sand coming out with the backwash, you'll need to put a valve on the discharge (a cheap PVC ball valve is fine) and throttle it to slow the flow. LO may be too low to fully backwash, but HI may be too high.