I should also mention that if you have unlimited dataplan, or only use it within you LAN, you should set the sampling rate to the highest possible. It sends audio in packets and waits until a packet are full and then sends it, which can create a 10 sec delay. You see the text tag of system and TG but the audio are heard 10 sec later. If you fill the packet quicker using more data with a higher sampling rate it will be almost in sync with the text tag presentation. I don't see that the WEB settings in RadioFeed have any option to delay the text tag. It could even be a fixed 10 sec delay as you always first listen to the audio and then a bit later might want to read the text tag and you can then also use the lowest sampling rate.
/Ubbe