I have a Lenovo y500 laptop (summer 2013). I have a microsoft wireless mobile mouse 3500. Whenever I plug in a USB 3.0 device such as my WD USB 3.0 External HDD or USB 3.0 flashdrive, my wireless mouse starts to lag so bad it's barely useable. It becomes useable when I unplug the USB 3.0 device or just plug it into my USB 2.0 port. My trackpad still works regardless of when I plug in my USB 3.0 devices. Is it just my mouse has a crappy receiver? Should I consider getting a bluetooth 4.0 mouse?