In the opening moments of Theater for a New Audience’s The Tragedy of Julius Caesar, Metellus Cimber (Ted Deasy), one of the conspirators against Caesar, confronts a “mechanical,” or ordinary citizen, who is out on the street loudly celebrating the festival of Lupercal. Metellus ends up putting a chokehold on the man and then tossing him to the ground. The violent energy doesn’t let up for the next two hours and 40 minutes of a production that, at moments, is clear and invigorating, but at others sacrifices subtlety for movement and spectacle.