How to stop Windows file transfer consuming all network bandwidth

When I initiate any file transfer from my laptop, over WIFI, to my network drive, immediately all other network traffic is interrupted until the file transfer is complete. For example, if I am watching a video and initiate a file transfer in the background the video stops and remains in buffering unless I halt the file transfer. Windows clearly is deciding to prioritise file transfer tasks, and to do so in such an extreme way that it apportions upwards of 99% of available bandwidth to that one task preventing anything else from being usable. Even navigating network locations becomes extremely

Question by Ed the Ted on Super User, licensed CC BY-SA. We show a short excerpt and link to the original thread as credit.