Overall server issues

This has been plaguing me since I started to play the game last year, the servers have such bad connections, and I wouldn't mind it that much as long as I didn't get abandoned sanctions because of it. It has made me quit the game for 6+ months, and I recently started [playing again, but to no avail. My internet speeds are 800MBps down and 400MBps up, and there are no problems in any other games. I also have login issues sometimes, I don't know if it is the spaghetti that the code is, or something else, this also happens on other platforms, which include: Xbox, Switch, and PlayStation. Hereis a link to my latest problem. I would love help on this, if there is any. Thanks!