Its getting real hot down here in Florida. Since I bought the car in Jan, I started taking note of oil temperature. I drive in stop and go traffic to work and back, an hour each way. The coolant never moves past 192 F, the oil will climb to 225 half way to work and then drops to 217 and then back up to 225 and then back down again etc... I decided to turn on Sport mode and almost instantly I notice the temperature start dropping till it reaches 199F and just stays there, all the time still in heavy traffic. Tested this 2 days in a row with exact results. Non sport mode and oil runs 217 - 225. In sport mode stays around 199F. There must be a fan or something that controls the oil temperature in Sport mode. I actually was driving in Non sport mode in heavy traffic thinking it would be cooler on the engine and I was surprised to find out was totally wrong. I wish there was workshop manual for these cars. Its nice to know what makes them tick.
Everything is as it shouldSame with my Base Cayman. I see a 10C change from Normal mode to Sport mode ( down in temp ). I still don't know exactly why, but the oil pump is a variable pressure thing, controlled by the DME unit, so I assume it ups the flow when you go to Sport mode. There is also an oil/water heat exchanger mounted on the engine crankcase, so I suppose that the DME unit may also vary the flow of coolant through that heat exchanger.
After discovering what you also noted, I tend to drive around in Sport mode, as 93C oil strikes me as a better bet than 103C oil temp...although 103C is still well within normal operation temps. My previous Audi RS3 ran 105C oil temp on hot days. Where I'm located , we get similar temps to Florida in Summer.
In sport/sport+ the car is ready for harder driving hence the low temp.
The oil pump has variable speed