Your attachments are almost completely hidden since they have faint green text to their links. Please post the actual documents HERE.
You show a fairly noisy video buffer amplifier with no voltage gain, not a low noise microphone preamp with plenty of voltage gain.
You did not describe the noise caused by the circuit. Low frequency hum or high frequency hiss?
The Chinese document you posted makes no sense. It says Line-input but shows an electret mic properly powered with DC, BUT it is driven by a signal generator. Why?
Does the module have a built-in mic preamp with plenty of voltage gain?
Are you using an electret mic?