S20's bad performance on One UI 3

[Fierce]

I got my s20 plus one month ago and was loving the experience, but once I updated to One UI 3, my experience is completely the opposite. The notification panel is laggy, the phone seems slow doing simple tasks and my overall experience has been very bad. Samsung, I would love some explanation on why my new phone seems like I got it 2 years ago. 

Cheers.

[Ehsank]

If after update then wait for few days, and as of now perform these below steps;

A. Wipe Cache Partition.

Steps to perform.

1) Turn off the device.

(Connect with type C cable/type C earphone only for Android 11)

2) Press and hold the Volume Up key and the spower button.
3) When the Android logo displays, release all keys.
4) Press the Volume down key to navigate and select "Wipe cache partition".
5) Press Power key to select. When the wipe cache partition is complete, Select Reboot System.
6) Press the Power key to restart the device.

B. Reset App Preferences.
Settings >Apps> Tap on Top Right 3Dots and select Reset App preferences.

C. Go to settings >general Management >reset>reset settings.

You can also send feedback to Samsung by using get help section
GetHelp>>SendFeedback>>ErrorReport/AskQuestion>choose appropriate section

[Fierce]

Thank you for your help Ehsank!

unfortunately I did everything you mentioned but it seems like this is a software issue.

once again thank you for your help!

cheers 🍻

[Ehsank]

its sad! hope you send the feedback
also if possible do visit service centre and get reinstall your software update it may help if its due to software glitch