It doesn't matter how much water will "turnover". Pump run time should be mostly independent of turnover or flow rate.

The reasons to run a pump and the time taken to do it:

Chlorination/circulation - Manual dosing ~ 30 min, SWGs require more time.

Skimming - Most skimming occurs in the first hour, after that only what falls in the pool.

Auto Cleaner - I find only 1 hour per day is required but you may not even have one so this is not even a consideration.

So mainly pump run time is just to get the debris out of the pool and not much more. Chlorination and circulation can happen pretty quickly.

I have a 20k pool and run for 1 hour on high and 3 hours on low speed per day but that is mainly because I have an SWG. In terms of turnover, that is less than a 1/2 turn per day.

You might want to read the pump run time study article in my sig.