Welcome to the Community!
We've created an article that may help you troubleshoot your connection speed issue.
Check it here: Slow speed issue
Are you using a WiFi or a Wired connection? If WiFi, then signal interference may be causing the problem.
We've created some articles that will help you improve your home WiFi network.
If you are still experiencing issues after performing the troubleshooting, please send me a PM with your TPG username or customer ID number.