Apex Legends lag/stutter issue on Xbox one

I’ve trouble shoot with 2 different people I got a New modem / router and my internet company left for the 3rd time this week they just put a boost on my signal even though I’ve played apex on the some Xbox and equipment and location since day one . I recently did the dns I’ve tried multiple ones and no it didn’t not help still lags / stutters in game and many more people are having the same issues.  All new equipment like this is sad because I’ve played every day since day one hours upon hours a day and Since this started a week ago it hasn’t stopped and I don’t know what else to do Microsoft even gave me port forwarding numbers to give to my internet company and that still didn’t help like i don’t know what else to do I guess my apex career is over because no other game lags on my Xbox