Unstable Connection Issues

Hi, for the past two weeks I’ve been having issues related to connection and lag. At first I thought it would be something temporary hence why I hadn’t reported it sooner. I have tried many different solutions within the game settings however nothing seems to be resolving the issue at hand. My brother who plays on his PlayStation 5 in the room next to me is not experiencing the same issues which is leading me to believe that it’s potentially an issue linked to my account? Please could you look into this. I just want to continue enjoying my evo grind :)