My battery usage has been in par to the last update @BarryDot however battery stats and usage time's is a subjective topic as we all set up our phone's differently and use them differently and use different apps etc.
Have a look in your Device Care Section under Battery to see what's using your battery.
If you see a particular app that is using more than usual then you can put it into your sleep or deep sleep Section and or delete it.
If you don't see anything out of place and your network connection is similar then look at the following.
> Clear Cache Files from the phone's System Partition Section > https://www.samsung.com/uk/support/mobile-devices/how-do-i-clear-the-cache-on-my-device/ You may need to insert your earphones or hook upto a powered On Laptop or use a Tv's USB Port to access the Clear Partition Section. This may help with lag or stutters as this clears the phone of old/unused or broken cache files.There is also a Repair Apps option in the Menu System too.
As a last resort back up and factory reset.
Help Links from Samsung.
Let us know how you get on please.
If I can be of any further help then please don't hesitate. Take care. 😎
Daily Driver > Samsung Galaxy s²⁵ Ultra 512Gb ~ Titanium Black.
The advice I offer is my own and does not represent Samsung’s position.
I'm here to help. " This is the way. "
