Android 10 One UI 2.0 k update k bd jin jin ko battery ya ram ki roblem arahi ha
wh Recovery Mode ma ja k Wipe Cache Partition kr lei.
Recovery Mode Process:
Power off Your Phone
Hold Power + Volume Up Button and released when Samsung Logo with Device Model Appears (Ex: Samsung Galaxy A30)
Now, move down with volume down key and select Wipe Cache Partition with power button and select Yes.
Now select Reboot system now (1st one)
Device Care will give your Ram some more boost
Easy way is to Add widget of Device Care.