Use the 'H' key to delay the subtitle or the 'G' key to speed it up.
Season 3 consists of 13 intense episodes. A 1080p BluRay rip of a single episode can range from 2.5GB to 5GB, putting a full season at nearly 40GB. A 720p BluRay rip, however, usually sits between 1.2GB and 2.2GB per episode. The total season takes up roughly 15–20GB—manageable for most external drives and fast to download.