You dont't spend much time for doing SEO for videos. Atleast not that much that you spend for other mediums. But a lot can be done to get a if you need one.
1) What's the title of your video?
2) Is the description effective?
3) Views?
4) Ratings?
5) Comments?
6) How is the Social Metrics?
7) Does the duration exceed seconds?
8) Tactics?
9) Does it have necessary transcriptions?