Here are a few steps to try to improve the speed of your Smart TV’s internet:

1. Check your internet connection and confirm if it’s connected and working correctly.
2. Check your router and confirm if it’s working properly.
3. Update the firmware and system software for your router and Smart TV.
4. Adjust the quality of streaming video from your Smart TV’s settings.
5. Check for any interferences from other electronics.
6. Check if you are using your Smart TV’s Wi-Fi connection or an external connection such as Ethernet.
7. If possible, connect your Smart TV directly to your router using an Ethernet cable.