I just took an update today of OS Sierra 10.12.6 on my work laptop (MacBook Pro (Retina, 15-inch, Mid 2015)). Which I had been putting it off until now.
After the upgrade, I noticed that the frame rate on the monitors hanging off my Dynadock are terribly slugish. Full disclosure, I am running 4 monitors AND my laptop screen is open as well.
In terms of delay, it takes about one second after a mouse click to start to see the screen update and another second for it to finish. If I click around a bit, I often get a cascading like delay.
The rate at which the docking bar appeared on monitors that are attached via the dynadock was always very slow, but now everything is just as bad as the docking bar performance on those particular screens.
A quick perusal of Ask Different seems to indicate that no one has ever asked a question about dynadock's with the MacBookPro, so this may be new territory.
Does anyone know who is responsible for the Dynadock drivers? Toshiba doesn't seem to provide a MacOSX driver on their website, yet the Dynadock seems to work perfectly (slugish-ness aside).
I thought it was an Apple thing then, but can find no record of it. Any ideas of who to reach out to would be appreciated.