Slow-motion

It was as if we were watching a slow-motion film.

Source: tatoeba (8957622)

It was as though we were watching a slow-motion film.

Source: tatoeba (8957623)

Helsen and his group are working on another on project that could make referees’ jobs easier. They are studying whether slow-motion video replays should be used to review disputed calls.

Source: tatoeba (12294200)

Slow-motion replay seems jerky because there really aren't enough frames.

Source: wiktionary