Selecting telemetry data to send and sending it continuously

I have a SpeedyBee F405 Wing. I want to continuously transmit the vertical speed value from this board to Arduino. In my first attempt, I assigned serial port 4 as telemetry and connected it to the Arduino’s TX RX input. Data is coming through, but I have two issues. First, it sends a lot of data, but I only want to send vertical speed and altitude values. Second, it sends data with a delay. It sends a data packet, waits half a second, and then sends another packet. I want it to send the data continuously without any delays. How can I achieve this?

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