iOS 14.2 bug on iPhone XR

My iPhone XR(A2108) has been upgraded to iOS 14.2, it is terrible.
1 Some apps crash, such as WeChat , Weibo. WeChat even can not be launched, I think maybe the system have some problem.
2 Touch screen, feels insensitive in some game, such as Muse Dash, even when I try to input password in lock screen, I must input password at a reasonable speed, otherwise the password will be missed.
I knew that Apple is quite difficult to work during COVID-19, but iOS 14 is very terrible, even more terrible then iOS 11, I hope somebody can fix this problem or give me a reply, thanks.
Having the same problem with WeChat. Will not even open since new iOS. Anyone got a fix for this?
Ever since I updated my XR to iOS 14, my phone is acting terrible. There is a lag in my typing in text messages, some apps just close, and now since 14.2 my facelock will unlock when I have a mask in or when someone else has my phone. I’ve talked to support three times now and they tell me everything is “working properly”. I guess this is the beginning of the end for XR’s. I Don’t think I’ll be getting another iPhone after this experience.
iOS 14.2 bug on iPhone XR
 
 
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