I'm experiencing exactly same issue (big lag in mouse movements). I've installed latest driver but still no help.
Setup:
- Lenovo X1 Carbon
- ThinkPad USB 3.0 dock
- 2 screens running 1920x1200
- Gigabit Ethernet cable connected
- Wireless mouse and keyboard receiver connected to the dock
- DisplayLinkManager v. 7.3.49122.0
Some observations (I didn't bother read through all of the posts in the thread so sorry if there are some duplicates):
- DisplayLinkManager eats up ~20% CPU (seems mostly kernel time)
- Updated driver doesn't seem to help at all
- lag is gone if I connect mouse / keyboard receiver directly to the laptop (not through the dock)
- with no receiver DisplayLinkManager CPU usage is down to 3~5%
For now I'm happy with the workaround (connect mouse and keyboard receiver directly to the laptop), but it'd be really nice if this issue got solved.
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