Why is the HP 6125G Blade Switch on the HP C3000 only running at 20 Mbps?

Question

HP

Good day everyone!

The organization uses a blade server HP C3000, with 3 blades, as well as SAN and Blade switches.
We noticed that the speed of work through the Blade is only 20-23 Mb / s. What speed was earlier - it is not known, it is possible that it has always been like this.
Tried to connect via optics, but the speed remains unchanged.
I run tests by copying files via scp.
On normal servers with a better speed, 80-90 Mb / s.
Some problem with the blade itself.

Software Version 5.20 Release 2110P01-US Tell me

, please, in which direction to dig?