I have such problem, i have rb433 ah + xr5 + r52h + 2 X 17 dbi 5ghz sector antenna.

when client are connected to antenna (clients are using loco5) there max speed is 7 mbps, if other will connect this speed falls down, can you tell me what problem i have? Wireless configuration is default, on interfaces default forwared is active and on ethernet (this interface is gateway) proxy arp is enabled, when i run bandwith test from other ap to Access points ethernet ports ip address speed is 40 mbps

Post here /interfaceiw wireless configuration and /queue configuration.