Xr500 Hardwire high latency and NAT

Hi! So I just switched from charter spectrum to a new internet provider that is supposed to be like fiber called Great Lakes energy Truestream. I reinstalled the router hardwired to Xbox but when I try to play my NAT starts as can’t find, then is moderate then open and almost back and forth. Also, my latency is 3x as high hardwired through the xr500 than through just the modem itself and speed is 300 download less and 200 upload less. My speed test on the router when it loaded after reinstall said 980mbs down and 980mbs up, but when I run it the test on the Xbox it is like 600 and 200 with 26 latency, that is after I change the geo filter. Before it is like 400 and 20 with 68 latency. My speed test wirelessly on my computer was 640 down and 640 up with 2 ping. What can I change to not have to deal with the geofilter every time I get on. I hated spectrum and have heard rave reviews on this truestream service, but I don’t know why the numbers are so inconsistent.