I think the car does a pretty good job of cooling down the large cabin quickly, even in high temperatures when stationary. My car has no aftermarket tint. I have tan seats which might help a bit. That said, "high temperature" for me is the mid 90s.
I have found that occasionally it gets lazy and lets the temperature creep up well above the set point. Dropping the set point a degree "wakes" the system and cools things back down quickly.