Android battery drain on connect App.

I bought a new Fenix ​​8 amoled two days ago and yesterday I found the phone turned off due to a 0 battery. Looking at the battery statistics I discovered that the cause is the Garmin Connect application that has consumed more than 25% of the battery. The consumption with my old Fenix ​​6X connected all day was around 1-2%. I set the Fenix ​​8 exactly like the 6X, with the same active sensors, and the same notifications.
In detail I noticed that with the Fenix ​​8 connected there was a data exchange significantly higher than that of the 6X but above all a very intense and prolonged CPU activity compared to the few minutes of the 6X.
I attach some images that show the consumption of my 6X and the 8.