How can I implement dynamic memory allocation

[Nikdcs]

Operating system

Ubuntu 24.04

Description

My docker-compose.yaml is as follows.
In the .yaml file, I found that the Windows system inside the container only uses a little over 2GB of memory, but the container actually occupies a fixed 8GB of memory on the host machine.
How can I implement dynamic memory allocation—i.e., the container occupies memory on the host machine only as much as the Windows system inside it uses, instead of a fixed 8GB allocation?-

Docker compose

services:
  windows:
    image: dockurr/windows:5.12
    container_name: win10l
    devices:
      - /dev/kvm     
      - /dev/net/tun  
    cap_add:
      - NET_ADMIN
    ports:
      - 60511:8006     
      - 60512:3389/tcp
      - 60512:3389/udp
    volumes:
      - /storage/docker/qume/data/windows/mirror/win10lx64_zh.iso:/boot.iso
      - /storage/docker/qume/win10l:/storage 
    environment:
      VERSION: "10l"    
      CPU_CORES: "4"   
      RAM_SIZE: "8G"   
      LANGUAGE: "Chinese" 
      USERNAME: "trong" 
      PASSWORD: "123123"
      DISK_SIZE: "100G"  
    stop_grace_period: 2m 
    restart: always
    networks:  
      1panel-network:
        ipv4_address: 172.18.1.52  

networks:
  1panel-network:
    external: true

Docker log

None

Screenshots (optional)

No response

[TAINCER]

As far as I understand it currently isn't working because of VirtIO driver issues with it on windows. May be worked on [1], but I'm not sure.

1: qemus/qemu#887