On January 12th i did a system update for my galaxy S20 FE phone. Since the update my phone has changed it's slower and things like bar QR codes in emails don't show up and some of my apps take longer to load. Is there any way I can resort my phone to it's pre January 12th state? I'm not happy with the current update and what it has done to my phone.
It is possible to download your previous firmware for your model and CSC code and flash it to your phone using the PC suite, Odin, but this is for experienced and competent users as it can, "brick", your phone.