CRS226 throughput problem - only 28Mbps

Thanks for info,
I’ve changed queue to ethernet-defaults according this post http://forum.mikrotik.com/t/crs125-24g-1s-2hnd-in-vlan-preformance-from-wiki/84210/1 and its better:
Download 51Mpbs
Upload 48Mpbs
CPU Load 49%

It’s not full speed, but queue is the issue.

Best Regards.