EX3700 slow wired speeds

So I have a hardwired CAT6 10Gbps line wired into this wifi extender, with a 1gbps network switch on the end with the extender. so max speed should be 1gbps on the line, and then 600mbps on the extender. (I have gigabit internet from verizon fios) Even sitting right next to it, I only get a max of 100mbps on the 5G extended network. I will clarify this is an ACCESS POINT. Its SSID is different from that of the router. Connecting to the router which is 200 feet away on ITS 5G network  actually has faster network speeds than the EX3700's 5G network. How can I get the speed to raise higher?.