To troubleshoot slow internet speed on your phone, you could try the following steps:
Check if your phone is operating on the latest system version.
Make sure your phone is connected to wifi.
Disable certain background activities on your phone. For instance, close apps that you are not using.
Clear your phone's cache and cookies.
Check if your phone has too many apps running at the same time.
Make sure the correct data plan is activated on your account.
Restart your phone to reset your internet connection.
