Hello,
Thanks for reaching out! I'm Microsoft user like you.
I can understand you are facing some issues with Internet speed.
I believe there is no change required from your end in your Computer as you are using Wired connection having 1 gbps LAN port and speed is completely depends on Network or ISP end.
Your Internet service provider look into it.
Hope this helps.
In case of additional questions, reach out back to me, and I will be happy to help and try our best to resolve your issue.
Best Regards,
Prakash