I am currently using a system with the specifications given below and using Plugable USB 3.0 docking station. My PC gets very slow as I open more browser windows to the point I have a lot of lag and slowness. There is no issue, when the same dual monitors are directly connected to the PC. The issue is same when I switch to different PC through the Plugable USB switch 3.
Windows Edition: Windows 10 Pro
Processor: Intel Core i7-3630QM @ 2.40 GHz
Installed Ram: 12 GB
System Type: 64 bit