Xfinity XB6 Gateway, 2 Playstation 4's

I have the Xfinity XB6 gateway to which I have connected via ethernet (cat7) a PS4 to port 1 and a PS4 to port 2.  But I see that port 2 is limited to 100mbps.  Is this the best way to connect or would it be better to connect the two PS4's to port 1 via an ethernet switch?  OR, should I simply connect the second PS4 via wifi?