Why is iOS 14.8 a cauldron of trouble?

UI is more sluggish than it's ever been

Apps using location--e.g. Google Maps--suddenly reset while using the directions feature

Search apps--e.g. Google--either hang, or refresh the page randomly and disruptively.

Most data seem to load slower--a network issue as far as I can tell, in both cellular and wifi status.

i know 14.8 was out to resolve a security issue. It seems to have created others.

any help?

thanks