Same problem here on Mint 17.3 Cinnamon and Lenovo USB 3.0 dock: performance is bad and the cursor is sluggish, with some latency and choppy movements. Will be hard to use on a daily basis.
I have far better performance when using the mini-DisplayPort connection on my laptop. Is it possible to use a combination of DisplayLink and DisplayPort, so that I can at least have good performance on my main monitor (using DisplayPort), and lower performance with DisplayLink but only on the monitor I use the least? I did not manage to make a DisplayLink-connected monitor to show up in the Cinnamon Display manager when the DisplayPort connection is used on another display, but maybe I did something wrong.
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