Phone lagging a lot after recent update

[Akshay42]

After the recent update the phone is lagging like crazy. My dad's Redmi 7A performs better than this phone.
Yesterday while celebrating holi I tried to open the camera and after clicking a picture was sent back to lock screen and photo was not taken. Solution restart.
Today before posting this, I was using my phone to surf web on Opera and it froze and I had to do a force restart.
Is there any stable update which lets us use basic functionality of our phones?
A Snapdragon 855 Phone freezing while using basic android apps(no games) seems like a joke and made me put a pause on my plans to buy laptops and other products from asus as I have used windows Phone in the past and am never used to seeing such lags anywhere.

[prashanth]

After restart how many days does it take to crash again?

[Akshay42]

prashanth

After restart how many days does it take to crash again?

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It does not wait for days.
This happens intermittently and could happen everyday or not for a whole week at all

[prashanth]

Probably issue with mother board take it service centre

[Anders_ASUS]

Before you take it to service center, please try a factory reset because that's the first thing they're going to do to your phone anyway. If they don't find any issue after this, then you could have saved the trip by doing it yourself