Rx/Tx rate not encouraging

currently runing the latest openwrt firmware on RocketAC -lite, unfortunately this have been my observaton,

Ethernet adaptor does not transmit data in 10Mbps or 100Mbps, only woorks with Gigabit port, unlike original firmware,

Wireless interface not negotiating for good transmit rate, Rx from other Vendor Hardware/Firmware (Mikrotik and UBNT) is very good but TX to other vendor hardware/Firmware (mikroti and UBNT) is locked on 6.0Mbits

how do i solve this, using the in my WISP setup.