That's easier to read, so where are you seeing the slowness? Jumbo Frames and Flow Control enabled?
And it looks like you used a SFP to RJ45 adapter from the gateway to the switch? I would of just went with a DAC as it would've been much cheaper and doesn't heat up as much. I presume the USW Flex is off in another room?
Neither of your Synology units have >1Gbps interfaces from what I can tell? Are you using LAG/LACP on them?
Just trying to understand why the SFP-RJ45 adapters are being used when the switch has 2x 10GbE (port 23/24).
I was trying to setup lacp on the older rs819 nas, but couldnt get it to work.
23 and 24 are being used for my nas's. one already is 10g (1821+) and was going to order the 10g adapter for the ds923