How to configure the ESP8266 for continuous WiFi communication in AP mode?

Hello,
The internet and forums are full of similar topics, but none of them are close to my problem, unfortunately.
I need to write a program for the ESP8266 with which I could communicate via WiFi with my phone (I already have an android app almost ready). I would like the ESP to work here in AP mode.

The snag is that all the tutorials show this in the web/HTTP server example. This makes it impossible to send large amounts of information in small portions (e.g. 4KB). I care about very low latency, I need to send at least 4 packets per second. (1 packet consists of 2 variables in total).

From my observations, all the courses and tutorials that show how to configure the network in ESP etc. Are based on a method which, after sending one portion of data, disconnects the client, and sending another portion involves establishing a new connection, which causes huge delays and often crashes the application.

I would like to know if it is possible to somehow configure the WiFi connection to create a kind of permanent communication channel (such a UART, only that over WiFi).

If anyone knows the answer to my question I would be very grateful for at least a link to a solution. Thank you for taking the time to read .

I personally haven't used it but supposedly "websockets" are used for this.
Example of use: https://www.youtube.com/watch?v=8ISbmQTbjDI (CNLohr, "WebSockets for awesome on the ESP8266"), he got between 200Hz - 400Hz refresh rate.

gkalfail wrote:

but apparently "websockets" are for that.

.
Exactly. Here is a nice article on the subject:
https://tttapa.github.io/ESP8266/Chap14%20-%20WebSocket.html

This can be done on foot....
Open socket
.
For example, fire up a listen on UDP port 666:
.
... and then just hop the transfer with the recvfrom and sendto commands.