Yes, same for me. I open the menu, select Unread to review all new messages and skip those that start with Android. Not a big deal, but a bit more comfortable if they were separated in a more permanent way.
I’ve noticed this on my Spartan too, but since I’m not a “gun-started” guy 😁 I’ve never tought about possible implication on measurement.
But screen loading doesn’t take 2 sec as on @Richard-Francis S9
This is absent or hardly noticeable on “non gps” activity like weightlifting