I will try to look at your files when I have my other system up, but for now, are you running anything that is designed to charge the phone faster? Are you using a special port to plug it in?
When the device is plugged in, you might check the how it is shown. My iPhone shows up as a portable device, but if yours shows us as some type of storage, you might check the Policy tab to see if there is a way to set it for Quick Removal or Better Performance and for testing, change it.
Also USB situations might be related to the Bios. Have you checked for any updates?