Hi @Nikita69420 Are you using any power saving Modes,just wondering as if no optimisation set will be a factor and you should not need for instance Maximum Brightness constantly. It is advisable to turn off connections which are not needed and to put some apps which are not regularly used into Sleep Mode.
See more on this and some other recommendations here (though you may not be keen on all of these) https://thedroidguy.com/how-to-improve-galaxy-s10-battery-life-
If you have made all the tweaks you can and still issues you may wish to clear the cache partition to see if that helps:
Need to follow these steps with Android 11: