WebRTC is used for a Full Bandwith experience in Orchid and Fusion and will rely on either the GPU or CPU to decode the video. Older model GPU's have issues when it comes to decoding the video. The resources of the machine may appear to be running normally. This is because all the decoding is being done by the video card. The problem is that the video card may not be able to keep up with the decoding of the video and you may run into issues with Full bandwidth viewing.
What we like to do in this instance is to disable hardware acceleration in the Chrome settings in order to force the computers CPU to decode the video data.
You will have to select the setting icon and then navigate to "settings":
Then navigate to the Advanced section:
Select the blue slider and it will turn grey indicating hardware acceleration is disabled: