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2.4G Data transmission between NRF24LU1+ and NRF52832

I want to get 32000 bytes per second with NRF24LU1+ ,as my audio sampling rate is 16K and sampling bits is 16.But actually I have lost one packet or more per 10ms.data loss.png.

Some codes is shown below:
NRF24LU1+:

hal_nrf_set_rf_channel(0x32);
hal_nrf_set_datarate(HAL_NRF_2MBPS);	  
hal_nrf_set_crc_mode(HAL_NRF_CRC_16BIT);  // CRC:16bits	
hal_nrf_set_address(HAL_NRF_PIPE0,RX_ADDRESS);
hal_nrf_open_pipe(HAL_NRF_PIPE0,true);

// Configure radio as primary receiver (PRX)
hal_nrf_set_operation_mode(HAL_NRF_PRX);

// Set payload width to 1 bytes
hal_nrf_set_rx_payload_width((int)HAL_NRF_PIPE0, 32);

// Power up radio
hal_nrf_set_power_mode(HAL_NRF_PWR_UP);

NRF52832:

nrf_esb_config_t nrf_esb_config         = NRF_ESB_DEFAULT_CONFIG;
nrf_esb_config.payload_length           = 32;						
nrf_esb_config.protocol                 = NRF_ESB_PROTOCOL_ESB;//_DPL;	
nrf_esb_config.bitrate                  = RADIO_MODE_MODE_Nrf_2Mbit; 		
nrf_esb_config.mode                     = NRF_ESB_MODE_PTX;            
nrf_esb_config.event_handler            = nrf_esb_event_handler;      
nrf_esb_config.selective_auto_ack       = false;
nrf_esb_config.retransmit_count=1;
nrf_esb_config.retransmit_delay=0;
		
err_code = nrf_esb_init(&nrf_esb_config);
VERIFY_SUCCESS(err_code); 
err_code = nrf_esb_set_base_address_0(base_addr_0);
VERIFY_SUCCESS(err_code);

err_code = nrf_esb_set_base_address_1(base_addr_1);
VERIFY_SUCCESS(err_code);

err_code = nrf_esb_set_prefixes(addr_prefix, 8);

MAIN.C:

for(num=0;num<100;num++)
{															      
  for(num1=0;num1<16;)
  {																																	
    tx_payload.data[2*num1]=0;
    tx_payload.data[2*num1+1]=0;																	
    num1=num1+1;															
    tx_payload.noack = false;															
    nrf_esb_write_payload(&tx_payload);															
    nrf_delay_us(800);															
  }
}

Could you give me some advice?

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