I found, that the gui-v1 service is occasionally consuming quite some cpu, despite i’m no longer using it.
svc -d /service/start-gui stops it, but be aware that this also terminates the vnc service, used to display the remote-console (for either version) through vrm.
Then, you can only access the local ui remotely when you have a vpn connection and can access the device ip directly.
Other than that, do a df -h and check the remaining disk space on the root partition. With the large image, there is little room, and when your device fills up that, it will become unstable.
The large image ships with signal-k, which i’m also not using at all, so I dropped that (which is quite huge as well): rm -rf /usr/lib/node_modules/signalk-server
(Advice as a user, not as victron staff, do at your own risk 
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