Upload speed - SLOW! (Well it was cut in half)

Hi everyone,

I recently returned my xFi to grab my own modem and router. I ended up buying an Arris S33 and a ASUS AX5400 (Router). When I was utilizing the xFi my upload speeds were 30-40mbps, but now with my Arris and router is around 15 mbps.

My current comcast plan is for 1000mbps (gig plan)

HELP ME PLEASE 😞 my gaming streming quality has gone down a bit.

Thank you,