Force Skype HD Webcam Video

Force Skype HD Webcam Video does not work anymore with Skype v6+
The good news in that Skype v6+ now always use the highest video resolution of your webcam, but the bad news is that you can't lower-it if you're lacking CPU power or network bandwidth.
The only way you change the video resolution of Skype is to purchase a webcam with the video resolution you want...

If like many other Skype users you are now struggling with Skype consuming too much CPU and/or Network bandwidth, we advise you to report this issue to Skype:
https://support.skype.com/en/faq/FA12333/how-can-i-send-my-usability-feedback-to-skype