Wireless-cm2 or wireless-fp with NON AC Mikrotik RB

RouterOS Wireless Networking
1

We have made several POPs with RB912UAG-5HPnD and RBSXT5nDr2, everything is NOT AC, and the wireless is with NV2 protocol, which wireless package is best to use in this case between Wireless-cm2 or wireless-fp?

Thanks cetalfio