How to send a large amount of data faster ?

Trying it with a different ESP8266 chip like the ones for a Pico shim

Flashed Espruino on to the ESP8266

Running the previous test progrem gives:

 1v95 Copyright 2017 G.Williams
Espruino is Open Source. Our work is supported
only by sales of official boards and donations:
http://espruino.com/Donate
Flash map 4MB:1024/1024, manuf 0xe0 chip 0x4014
>Start connection process
Try Connecting to WiFi  faux
=undefined
null
connected? err= null info= {
  "ip": "192.168.1.13",
  "netmask": "255.255.255.0",
  "gw": "192.168.1.1",
  "mac": "18:fe:34:cb:2c:23"
 }
Wi-Fi Connected
n= 4 t: 0.014 sec
n= 3 t: 0.082 sec
[WS] "Hello to Espruino!"
n= 2 t: 0.149 sec
[WS] "Hello to Espruino!"
n= 1 t: 0.231 sec
[WS] "Hello to Espruino!"
n= 0 t: 0.399 sec
[WS] "Hello to Espruino!"
> 

8192 / 0.231 = 35,463 bytes per second
35,463 * 8 = 283,705 bits per second

The tool_config.txt

path_data:
choosed:C:\Users\jj\Documents\ESP8266Upd­ate\espruino_1v95_esp8266\boot_v1.6.bin;­0x00000;
choosed:C:\Users\jj\Documents\ESP8266Upd­ate\espruino_1v95_esp8266\espruino_esp82­66_user1.bin;0x1000;
choosed:C:\Users\jj\Documents\ESP8266Upd­ate\espruino_1v95_esp8266\esp_init_data_­default.bin;0x3FC000;
choosed:C:\Users\jj\Documents\ESP8266Upd­ate\espruino_1v95_esp8266\blank.bin;0x3F­E000;
empty:;;
empty:;;
empty:;;
default_path:C:\Users\jj\Documents\ESP82­66Update\ESP8266_NONOS_SDK-2.1.0\bin;

Crystal freq 26.2
SPI Speed 80M
SPI Mode QIO
Flash Size 32 Mbit-C1
Baudrate 115,200