Bobo Dingus

Hey all, new guy here. I have Starlink and recently bought a TP-Link router to get Open NAT. My speeds (I'm out in the middle of nowhere) with the wireless (on SL App) is amazing, but with Cat6 to LAN port it's 1/4 the speed. That makes no sense. Do I need to reconfigure the router? It's an AX 1800 TP-Link. Thanks in advance!