Do you mean that the component is marked as completed immediately? This will make the progress bar advance without interacting with the video - for example, if the video is the only component on the page, the page will be instantly be marked as 100% complete. This is because the component is marked as completed once it is in view (which is fine for my purposes).
An alternative method would be to use the direct video links provided by Vimeo (which you can find in the video setting page, although I think you might need a Pro account) with the standard Adapt-contrib-media component. I haven't experimented with this, but you could try either:
"_media": { "source": "http://www.vimeo.com/XXXX", "type": "video/vimeo" }
OR
"_media": {
"mp4": "http://player.vimeo.com/external/XXXX.hd.mp4?s=YYYYYY",
}
This will use the stock video player. Sorry, I don't have a chance to test those.