Again a huge 900mb+ size monthly security update claiming more stability to the phone and bettering the photo quality along with also the better photo quality for social media photos.
At present the update looks stable and there are no wierd app crashes or any wierd battery drain. Above all amazing work by Samsung for regularly providing the security update on time. Great work.......
Ohh that's disappointing .. ....better take to the nearest Samsung centre and ask them to upload the latest software with there computer. Make sure to take back up of your data. Actually after this update it should improve but in your case its opposite. So just get it checked. Cheers bro✌️