The showrunner, Steven S. DeKnight, crafted a unique linguistic register. It is not Latin; it is "Spartacus-English." It is Shakespearean iambic pentameter crushed by a barbarian’s fist. Phrases like "Jupiter’s cock!" or "I will rain shit upon you from on high" are not vulgarities; they are liturgical invocations.
The text is permanently burned into the 720p video file. You cannot turn them off, but they are guaranteed to be perfectly synced.
To guarantee the best audio, video, and subtitle synchronization, using official channels is highly recommended. 1. Starz Streaming Service