What's the trick to get the game to download updates at a reasonable rate? It's only going a few MB/min.
Yes, but that is an incredibly low rate of speed and seems to be clearly indicative of an issue with the process.
Their servers have limited capacity. Download during the weekend is probably the slowest, but probably also depends on the time of day. Your internet connection can probably do more, but it could be the DBG servers are slow or your PC is slow to install. It usually takes several hours to download and install the ~ 30 GB.