mPCI senao 2511 not work to ROv3.3

Hi
i have problem with radio senao 2511 to RO v 3.3
look this pictures

in v3.3 is very slow max trafic is 1.2Mbps
in v2.9.50 is faster max trafic is 2.5Mbps

thanks
ROv2950-532.JPG
ROv33-532.JPG

please send supout file to support@mikrotik.com

I have this some problem

Same problem over here with any version 3.*. Downgrading to 2.9.51 seems to correct the bandwidth issue. However I do have some RB600 that I can not downgrade to 2.9.51…

The problem occurs only with Senao cards so I guess it must be a driver problem of some kind…

Any ideas anyone?

Curious as to why you are using Senao???