Desync

I’m being desynced out of every online game I get into. My connection runs great (300 mbps) and I have the best ISP in my area according to EA’s site. I contacted the support team and they gave me the same bs answers their website provided (none worked) and basically told me to f*ck off. Spent money on this game to not even be able to play it fully since the first few days of release. They haven’t addressed the issue directly or fixed it in any update. I have no issues with any other game (including EA games) so I know it’s not an issue on my part. Ultimately feeling scammed and I’ve run out of things to try and apparently EA has too because they told me to come here. If anyone has any ideas or answers it’d be extremely appreciated.