For the Lock Screen battery usage, review the Widgets you are using and remove any non standard widgets along with the ones you do not use.
How to add and edit widgets on your iPhone - Apple Support
Ironically you also have the known apps installed that have seen the poor battery performance in every post here:
- Instagram
- SmapChat
- WhatsApp
I don't know anything about the tutti.ch app, but the others should be removed and then post the battery usage again. The goal here is to identify the cause of the problem and it obviously is not the device you are using and related to the installed apps. Instagram has been the most prolific problem with its recent updates that affect all devices and iOS versions with the Social Graph of your account being the the largest factor between users who may not see such a dramatic result in battery usage.
I have seen the Camera app using excessive battery, and an iOS update may be able to solve that one, but you have much more going on there. Remove those identified apps and widgets and post your battery usage again.