RB5009 + ODI DFP-34X-2C2 slower than ISP's ONU

[SionFE]

Hello.
I replaced ZTE F670 ONU, provided by ISP, with Mikrotik RB5009UG+S+IN and ODI DFP-34X-2C2. ROS 7.13.3 and SFP FW is 220923. ISP provides me a 1 Gbit plan.
Did some comparison using Speedtest. Here are the results:
ZTE F670 - stable 950 download, 940 upload.
RB5009 + ODI - 940 download with periodical throttling to 890, stable 940 upload.

LAN_SDS_MODE set to 6. On Mikrotik 2500BaseX set. What could be the possible reason for such behaviour?

[Anime4000]

Mikrotik flow control between PON Stick at this moment kind of bugged, try this:

Switch > Port

[SionFE]

Tried this, the results became worse:
No more than 110 Mbit/s on download, same 940 Mbit/s on upload.

[Anime4000]

have you tried
flash set OMCI_TM_OPT 0 ?

This look same like issue #35

[SionFE]

Yes, tried right now. This is the result with OMCI_TM_OPT 0 and switch port settings enabled:

And this is the result with OMCI_TM_OPT 0 and switch port settings disabled (this is when throttling occurs):

When there is no throttling I get 940/940 without switch port settings.

[Anime4000]

since you doing 2.5G baseX in Mikrotik, try this via PON Telnet:

/bin/diag bandwidth set egress port all rate 4194296
/bin/diag bandwidth set ingress port all rate 4194296

assume you have access PON IP Address via NAT

that command wont survive across reboot, apply when you have Internet

[SionFE]

Look like this helped me. Thank you.