Unfortunatly I discovered that my video’s on vimeo are not displayed correctly in ALL browsers.
If you are watching vimeo in Chrome there is a change that the video’s are very pixelated.
This has to do with accelerated hardware display in chrome.
If that doesn’t work I suggest that you watch vimeo video’s in FULL SCREEN or change browser.
Firefox is displaying it correctly at the moment.
– Open your Chrome browser and type the following in the URL bar: chrome://flags
– Then, scroll down until you see the setting “Disable hard-ware accelerated video decode.”
– Look for the button that says “Enable” and click it so that it changes to “Disable.”
Source: https://vimeo.com/forums/topic:109071