Xbox On Different PC?

Yes, he can do that. As long as his home email address is not already a Microsoft account email.

He just needs to log in to his Microsoft account, add the new address, set it as his primary address and then remove the old one.

https://support.microsoft.com/en-us/help/12407/microsoft-account-change-email-phone-number

Hi DemiFalle

Your Xbox account is linked to your Microsoft account. If you want to chat with your friends, you will need to log-in to the PC with the same Microsoft account. Changing the email address will not work and Xbox details cannot be transferred to another Microsoft
account.

Can you not just sign in to the new PC with your existing Microsoft account?

well you see, my friend has a microsoft account with his work email. he made that email his xbox email by accident. he wanted to ask me if he could change his xbox email to his home email.

Also you gotta remember the internet isnt all 1gigabit

Thats just yoir local connection

Just because you have 1gigabit per second doesnt mean everyone you encounter will have it

Thats not how the internet works

This is the way the internet works

First you connect to yoir host which depending on where the local login server lets say you are in the us east coast and the local server is in chicago (example) you may connect to 5 different nodes before you get to chicago and not all of them will have
1gigabit per second for all you know one connection can be 100mbs or its so busy that they dont have 1gigabit to spare the router may spare you 50mbs and you have no control over that your connection may try and reroute.but its never garenteed nor will your
isp ever promjse that much to every single server as its out of their control they only promise you a high speed connection to the internet not every service

Fyi the internet is a series of connected networks

There are no straight paths to a single server you will never get a top speed all the time and when you do a speed test thats between you and the speed test server their software is designed that way

It doesnt mean the internet is

Hi there, I would say there's nothing really you can do about it, I'd put in down to your computer has more processing power compared to Xbox and that's why the ping, unpload and download speed are so different.

Its a big difference from your PC to Xbox. Maybe a hard reset on your Xbox might help somewhat.

To perform a Hard Reset you Hold your power button on your Xbox for 8 to 10 seconds or until it turns off. Once the Xbox is off unplug your power pack from the Xbox so it has no power running into it. Leave the power pack unplugged for 5 to 10 minutes and
then plug it back in and start up your Xbox. Let us know if it helps all. Thanks