The initial connectivity of the mobile app to my car became significantly slower after one of the upgrades. I turned the energy saver mode off yesterday as a test and the mobile connection time returned the previous quick response. Anyone else notice this?
Sounds like you got 5.6. And this is the expected behavior when toggling between modes to cut the vampire losses.
When your car is in energy saving mode, it is basically asleep like your laptop, desktop, etc. It takes a few seconds for it to wake up and to bring all systems online.