@RobJenk Greetings from the HP Community!
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Click here for steps on finding the information we need!
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There are a few reasons why the internet performance is initially slow, and here's all the reasons, including fixes to resolve the issue once and for all:
Step 1: Detecting and removing spyware and adware
If the computer becomes slow after connecting to the Internet, or your home page changes to a page you do not want, or unwanted desktop links display, or advertising windows pop up repeatedly, then the computer probably has spyware or adware installed. Spyware and adware can be very difficult to remove manually. For more information about spyware and how to remove spyware from the computer, go to Computer Might Be Infected by a Virus or Malware (Windows 10, 😎.
Step 2: Scanning for and removing viruses
Many viruses use an Internet connection when a browser window is opened and can cause the computer to slow down or stop responding. For more information about how to scan and remove viruses, go to Computer Might Be Infected by a Virus or Malware (Windows 10, 😎.
NOTE:
After scanning and removing spyware and viruses, run Windows Update to update your computer.
FOR DETAILS & FURTHER INSTRUCTIONS, USE THIS LINK: CLICK HERE & SKIP TO STEP 3 ONWARD
(By the end of this article all the issues should be resolved)
Keep us posted,
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Give us a virtual high-five by clicking the 'Thumbs Up' icon below, followed by clicking on the "Accept as solution" on this post,
Have a great day!
Riddle_Decipher
I am an HP Employee