Who is your ISP? Did they supply the router? You COULD ask them if you can get a rev i:
Actiontec’s Gateways and Extenders incorporate the most advanced WiFi 7 technology, including tri-band 4x4x4 with 10Gbps WAN/LAN throughput on our flagship WiFi 7 gateway. We’ve optimized antenna placement on three dimensions to deliver a robust signal between floors and to the far corners of...
www.actiontec.com
At least then you would have Gigabit and Wireless n.
But honestly, quickly looking at both routers, I don't see anything special about them. It would be a little different if you said you used it for VOIP, but you don't, so any good router on the market SHOULD work here. EDIT: Nevermind, I see the coax connection, so that next suggestion wasn't going to work.