Up until the point in time marked by the yellow line, I had Outgoing Encryption enabled, and allowed for incoming legacy connections. Speed was into the single digit KB range (both UL/DL), fluctuating momentarily to 100KB or so and dropping again. This happened for almost a whole day, and I had restarted the client many times. After that point, I disabled encryption and restarted the torrents, and everything seems to be doing OK.