The Quick panel is lagging a lot after ui 8 update, instead of getting smoother and more fluid it has become even more worse, it's lagging frequently like pulling it down after few minutes it lags as before and the most frustrating thing is in when I'm in landscape mode, like watching a video in full screen etc.
If you got that update recently then wait for a small patch update I think that will fix the issue, I myself was experiencing an issue (heating) on my new device which was fixed after a small patch update.
Kindly complaint to Samsung customer support through Samsung Members App as error report also send log files Along with this error report for this issue and wait for next update may be fix it by Samsung team soon. If you like please accept as a solution it's help to others users also, click on 3dots in my reply section and click on accept solution. Thanks.
