missing data when recording audio on raspberry pi pico

Question

i wanted to record audio using max9814 and raspberry pi pico with micropython/circuitpython but when i recorded the data, some parts of it lose because it's trying to read the data and write the data into a .wav file and it can not hadle it simultaneously.

the circuit is like below:

RPI PICO	MAX9814
GP26	OUT
3v3	VDD
GND	GND

my code is below:

import board
import analogio
import time
import adafruit_wave
import struct
import storage

# storage.remount("/", readonly=False)

adc = analogio.AnalogIn(board.A0)
conversion_factor = 3.3/4096
buffer = []

f = adafruit_wave.open("audio.wav", "w")
f.setnchannels(1)
f.setsampwidth(2)
f.setframerate(8000)

def save(data):
    global f
    f.writeframes(bytearray(data))
    print("done")

try:
    while True:
        sample = adc.value * conversion_factor
        frame = bytearray(struct.pack('>H', int(sample)))
        buffer.extend(frame)
        
        if len(buffer) > 16000:
            save(buffer)
            buffer = []
            print("clear buffer")
except KeyboardInterrupt:
    print("closing")
    f.close()

How can i handle it?