Nice to meet you via TFP!
12 hours is quite a bit, but it all depends on how much skimming you like to do, and how much run time you need for the SWCG. You could start dialing it down incrementally (both duration and speed) and see if it stays as clean as you like. Lots of people run their low speed at a fair bit less RPMs, and don't use high speed other than for backwashing, which you don't need to do anyway. Some run at very low RPM 24/7. For many, 6 or 8 hours of water circulation (in summer) is enough for getting chlorinated water into all the nooks and crannies, and some people as low as 2 to 4 hours.
If it were mine, I might use quick clean just before I get home from work, so it's nicely skimmed for the evening, but really it's just a matter of preference. Great to have the options and I bet you're very happy to have the flexibility.