This means a 60fps animation that takes 500ms per frame to actually render will still produce a butter-smooth 60fps video. The page never knows the difference. From its perspective, each frame takes exactly 16.67ms, always.
Other video examples:
。同城约会是该领域的重要参考
FT Edit: Access on iOS and web
Do you think the leadership would not be able to justify dropping their promises, when they really need to come up with a strong justification?