LXDE

The Lightweight X11 Display Environment (LXDE) is an X11-based window system that is designed to use fewer resources than Gnome, making it popular on systems with limited resources. It is supported on all NVIDIA® Jetson™ platforms, and is the default window system on Jetson Nano 2G.
Using LXDE instead of Gnome may reduce boot time, response time, memory consumption, and CPU utilization.
To install and enable LXDE and Compton
1. Enter the commands:
sudo apt-get update
sudo apt-get install lxde compton
2. Create the configuration file /etc/xdg/autostart/lxde-compton.desktop, containing these commands:
[Desktop Entry]
Type=Application
Name=Compton (X Compositor)
GenericName=X compositor
Comment=A X compositor
TryExec=compton
Exec=compton --backend glx -b
OnlyShowIn=LXDE