Hello, I recently bought two monitors for my laptop, with these I also bought a usb to hdmi adapter. It appears that the monitor using the splitter appears much duller than the one not using the adapter, I am wondering if this is a problem with the splitter, or if it is something I can fix. I am using a j5create USB 3.0 to 4k HDMI Display Adapter with Windows 10 and a USB 3.0 port. Disregard what I said above about the USB 2.0 limitations. I am plugging the adapter directly into the USB 3.0 ports, tell me if you need anymore information, thanks.