Horrible update "speeds"

What is wrong with the Blizzard app? This OW update downloads at between zero and three B/S which I believe is BYTES per second. Even pre-1980 modem speeds were faster than that.

Moreover, the whole time it’s doing this the Blizzard app has all CPU cores pinged at 100%, the fans are going nuts, and the computer could melt the ice caps. Why would you need this much of the CPU to do essentially nothing?

I run “SpeedTest dot net” on this laptop and get 25MB/s down and 10MB/s up, so the problem isn’t on my end. What’s the deal on your end?

The slow download speeds are normal for this specific patch. Details: