Thank you for being a part of Samsung community. We apologize for the inconvenience you are facing in the device after the update. The device performance can be improved by clearing the device RAM and keeping the internal storage free. Please provide logs within 15 minutes of performance issue occurrence by registering this feedback in Error Section (Samsung Members App -> Feedback -> Questions/Errors -> Create -> Error reports), which will help us to analyze the issue and provide exact resolution. Be sure to hit ♡ when you find an answer that works for you.
For further assistance, you can get in touch with us via Live Chat option by following- http://livechat.support.samsung.com/Customer_new/IN. You can also connect us via Samsung Members web community by following mentioned url-https://community.samsungmembers.com/en_IN#/