At default settings, the Windows operating system is limiting the bandwidth for internet connection for 20% of the total bandwidth that should be maximized.
The trick to outsmart that the internet connection on windows can be a maximum are as follows:
1. Click Start | Run
2. Type gpedit.msc | OK
3. Once logged in click Administrative Templates | Network Clicks
4. When it opens click QoS Packet Scheduler
5. Then click on Limit Reservable Bandwidth
6. When it opens, change the setting to Enable
7. Change Bandwidth limit to 0
8. Click Apply | Ok
9. Restart your computer
Could be a different outcome for each computer, one of which may be caused by computer specifications or any other type of connection used (this is only my guess only, because I have not tried all kinds of connections).
Hopefully useful.

1. Click Start | Run
2. Type gpedit.msc | OK
3. Once logged in click Administrative Templates | Network Clicks
4. When it opens click QoS Packet Scheduler
5. Then click on Limit Reservable Bandwidth
6. When it opens, change the setting to Enable
7. Change Bandwidth limit to 0
8. Click Apply | Ok
9. Restart your computer
Could be a different outcome for each computer, one of which may be caused by computer specifications or any other type of connection used (this is only my guess only, because I have not tried all kinds of connections).
Hopefully useful.