Pirated downloads are often "cam rips" (recorded on a phone in a theater). The video is often shaky, dark, and blurry, and the audio is usually muffled or echoey. This ruins the cinematic experience intended by the director.
Instead of looking for pirated copies, consider supporting the film industry by purchasing or renting the movie through legitimate channels.
Wait for the official digital release. It supports the artists and ensures you get a high-quality, virus-free viewing experience.