Usually this means it is using a "basic" driver and you need to update it to use a "real" driver - and everything else will get faster too, when you do.
I was thinking of the feature as "up late" but I will now also think about it as "woke up early" - what you describe should probably be the way it works.
Yes, and I understand that it probably would not be able to differentiate between full screen on YouTube or any other full-screen media on another website but that is fine in my books.
Medium transition speed and entering a location further east (and little south) did indeed get me the result I wanted. So thank you! I'm still waiting to see whether it will affect negatively on the evenings, probably not.
Telling f.lux you are further East than you really are will give you an earlier sunset time as well. How much earlier depends on when the sunset is going to occur at the location you've selected.