ec2-mac gui hangs so much, making session useless.

Problem:

1. VNC viewer hangs so much and make session unusable after successful connection.
2. Tigervnc report "Unknown security result from server" while other vnc clients are connecting without any problem.

Setup:

server: macos ventura

cloud: aws

intance: mac2-m2pro.metal

vnc client: realvnc , remmina

Followed Tutorial:

1. aws

2. apple

In this tutorial the connection established through ssh (ssh -i and -L) and then connecting it through vnc viewer.

The mac listen on tcp/udp port 5900 and so it is connecting with vnc client but session freezes so much making it useless.

Session hangs so much making it useless.

Desktop Environment:

1. LXQT
2. GNOME

Kernel: version: 6.5.8-arch1-1

REQUEST:

How to overcome from this problem?

NOTE:

1. I have another ec2 instance with arch standard image with xfce4 desktop env. which is running without any glitches (perfectly).