NightHawk Router R7000

I’m going crazy. I’ve had this router for close to a year now and it’s been fine. I used to get like 300mbs while I was paying for 1gig with Comcast last year.

Fast forward, I’ve just moved to Myrtle Beach and just got 1 gig Fiber Optic internet. I’m still running speed test and I’m getting like 280mbs. Yet when the service guy was here, he directly jacked into the outlet and was getting about 600-900mbs.

I’ve been googling stuff all morning. I’ve turned off the traffic meter in the router, I’m going crazy trying to get at least 600mbs here. My Xbox Series X is hardwired into the router and I’m getting 120mbs, like wtf!!?

Any ideas solutions ?