Note 10 lite battery drain

Hi, recently  bought Samsung Note 10 lite. I am not  a heavy user. I saw good reviews for this device. So went ahead and got it. However from day one I am not getting full day battery for normal use. I do not watch movies, I do not play games, I just use it to do web browsing and use my mobile as a hotspot . From last 7 days since I bought this new phone I have to charge it at least three times a day. When i go to the battery usage settings is the normal screen on time for a day is around 6 hours in total with at least two and half full charge done in a day. In fact when I charged to 100% and go to sleep and when I wake up in the morning I loose  almost 25% of the battery charge that too without screen time I don't know whether this is my device issue or in general note10 Lite with Android 10 consumes so much battery. My earlier Samsung device A8 Plus with 3500mAh battery used to give me  1.5 day a of normal usage with the same amount of screen time, hotspot and gradually after 2 years I lost around 20% of the battery capacity. I am surprised that a new Samsung Galaxy Note device is actually giving me lower usage time on single charge then at two and half year old A8 Plus which lasted last for around 12 hours with normal usage.

Kindly suggest me any help  to resolve  this battery drain issue .