Why are the UE4 updates (from the launcher) SO big?

This launcher is painfully slow updating/installing things, I imagine all of this is partially why. I love how in the middle of installing an update it hangs at anywhere from 87-93% and stays there for hours on end. Meanwhile, my task manager is telling me I’m only using 50% of my available resources, but I’m literally unable to do anything else on my computer- else, everything freezes.

I just wasted 8 hours downloading and installing 4.14. It’s still not installed. I feel like I’ve been stuck behind an old couple driving all day. I had many more things I wanted to do today. I’m sorry if this comes off harsh, it could be a bit emotionally charged… but please, dudes at Epic- fix this slow POS launcher, for the love of god. Thanks!