Welcome to the community and thanks for posting.
Sorry to read that you are having issues with the download speeds on your Xbox One.
I've taken a look at your connection for any issues, and the network segment is running stable.
Are you able to test on a PC/laptop through a wired connection to see if you get the same issue?
Do you notice this at all times of the day or just at certain times?
Hope to hear from you soon
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