RB1100AHx2 questions

Hello all. I am using 12 of the 13 available ports on this router.
I have my main PTP feed on port 1 of this router. This port typically sees 100-175mbps.
Ports 2-10 are various PTP radios, etc…

I have a Ubnt Powerbeam M5 used for PTP on port 11, and a Cambium EPMP access point (10 wireless users on it) on port 12.

So the performance on port 12 (Cambium EPMP) seems to be somewhat slow.

Should I move this radio to a different port to get better performance? I have to use all 12 ports.

Are there any guidelines on what to use/not use on ports 11-13?

Thank you.

Try to change port to verify if it helps. Ports 11 - 13 are not connected to internal switches.
Check this diagram: https://i.mt.lv/routerboard/files/Block-RB1100AHx2.pdf