Hi, kindly help us with the following information to find a solution to your query.
1. Name of the Asus device you are using.
2. Firmware version your device is on.
3. Elaborate more on your concern.
when you say that your SOT (Screen on Time) has gone down, can you share the SOT after trying the below:
1. Charge the battery to 100% & use as per your normal usage pattern
2. When the battery strength reaches 10%, go to settings = Battery => Tap on the battery icon & share the graph
3. settings => Battery => Check the screen & share the same