to speed up your connection internet you can attempt this tricks:

1. Click RUN
2. Write GPEDIT.MSC, enter
3. Select Computer Configuration - Administrative template - click Network
4. Click Qos packet scheduler - Doubleclick on Limit Reservable Bandwith
5. Click ENABLED reservable bandwith and give the values 0 (0%)
6. After that click applay and OK
7. Restart your computer