Mesh handover network with no latency time or no packet loss

Hi,
I tested with your suggestion.
I’m testing with Compex WLM200N-5-23 2X2 MIMO.
Problem is throughput is around 20Mbps.
I expected 150~200Mbps around.

Can you solve this problem?
http://forum.mikrotik.com/t/mesh-configuration-problem/54013/1
http://forum.mikrotik.com/t/802-11n-throughput-problem/54014/1