… like surveillance cameras and phones? These are quality bad, no?

Just good to keep in mind you’re arguing with communists about idelogy.

You’re arguing with people on lemmy.ml.

That assertion is invalid, at least in English. Speech is ~130 wpm 1 and reading is >200 wpm 2

And subtitles going by too quickly is a symptom of speech speed vs read speed, not audio comprehension rate.