High data usage und very hot phone

🚧 THIS IS A TICKET MIGRATED FROM UPVOTY. The original ticket and comments will be available for a limited time over at:
https://abrp.upvoty.com/b/report-a-bug/high-data-usage-und-very-hot-phone/
———————————————————————————
I‘m using an iPhone 15pro and the phone gets very very hot while navigating, in fact so hot that it says it needs to cool down before further usage.
Also the mobile data usage seems very high, on a 1500km route it used about 4gb of mobile data. Seems like the app is not very optimized