How can avoid using the 100% of the cpu?
I got 2 rb 133 with 2 r52
3.7 router os
Station → bridge
wpa2 enable
the bandwidth tool is 20 mb udp, (but i think the bottle neck is the cpu),
The 5ghz and 5ghz turbo mode shows the same performance
I disable connection tracking but i didnt see any difference
Thank you
uninstall all unneeded packages
What for?
if the packages aren’t being used then the cpu load can’t be affected
disable encryption
had the same problem and reached only 600kb/s 
CPU was 100%
u know how i solved it??? bought 2 x RB333 . its expencive but it works great and it worth the money. THANKS MIKROTIK
Use RB333 if you need more bandwidth.
disable encryption
No, the r52 do all the encryption stuff by hardware, so its the same
I tried with encryption , without it, and with compression too.
HellMind
On RB133 better use ROS 2.9x
With 2.9 i got the same benchmark result
Maybe the cpu is the bottle neck