We apologize for the inconvenience caused to you.
Can you please confirm which application are you using this video with(Premier Pro or AffterEffects)?
Also looping in RameezKhan to help you further with the issue.
What's the resolution of the comp? Are you viewing it at full resolution?
Which version of After Effects are you using?
Can you post a screenshot of your After Effects workspace?
The resolution of the video according to the Stock website is Full HD (1920 x 1020).