Steady lag on duties

[ceae]

I have Comcast, 500gb down internet speed: Arris Surfboard SB8200 modem and a Netgear Nighthawk x6 router. I've been getting consistent lag in duties, especially bad in 24 duties. Sometimes it is unplayable and it'll say I've got 18k receiving.

I am not sure there is a solution other than to post here, I've complained to Comcast and they said to bring it up with SE.

I just want to play my game. This wasn't an issue until Stormblood and since then it feels like its been consistently getting worse and worse. : (