Hi wangyal,
Welcome to the HP Forums!
I would like to take a moment and thank you for using the forum, it is a great place to find answers. For you to have the best experience in the HP forum, I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I understand that your wireless is slow. Here is a document to assist you. Troubleshooting Wireless Network and Internet (Windows 8)
Have you ran The HP Support Assistant to help with HP updates and resolving issues?
Have you done all your Windows updates?
If you would like further assistance would you provide the exact model of HP computer you have and the Operating System you are running. How Do I Find My Model Number or Product Number?.