Windows 8, Lenvo USB 3.0 dock = lag + fuzzy image

[elfuego]

I also have the issue described in the first post. Brand new Lenovo x1 carbon running on windows 8, USB 3.0 hub, 2 displays connected with wired keyboard and mouse.

I experienced a very unpredictable mouse lag, very sluggish performance while moving around active windows. Then I followed the instructions here:
http://www.displaylink.com/support/ticket.php?id=346

and the effects have gotten from bad to worse - the external monitors now do a mini-blink whenever I type anything on a keyboard and occasionally there are graphical glitches (similar to ones when you overclock a graphics card too much). Of course, in addition to very slow performance.

Is there any help to this issue finally?

Edit: Fixed - the problem was that the hub was connected to the USB 2.0 port instead of USB 3.0. The X1 carbon has 1xUSB 2.0 and 1xUSB 3.0 connector. Not both are USB 3.0 :-/