Hi,
I see that you are using a Razer keyboard… some Razer devices have « created » issues (slowdown, lag, etc) for players for many years.
If you are not using the Synapse version 3 drivers, you may want to try them out and see if they help. If you are already using Synapse version 3 drivers, you may want to disable the Chroma effects… you will more information on these issues here and the post immediately under it.
Finally… are you aware that Blizzard currently has a PTR to try and fix the freeze that is plaguing many players ? If you have time, you could try it out and see how it works out for you. You are running build 19043 of Windows 10… and I think that that is one of the builds targeted by the PTR. You can find information on the PTR here:
Good luck in your games.