Minor tweaks as suggested by geneotech

scripts/deploy_hypersomnia.sh

@@ -44,7 +44,7 @@ return {
                 },
                 send_heartbeat_to_server_list_once_every_secs=99999999,
                 -- I think this makes the server less CPU hungry when idle
-                sleep_mult = 10.0,
+                sleep_mult = 0.5,
         },
 
         server_private = {
@@ -60,7 +60,7 @@ Description=Hypersomnia server
 After=network.target
 
 [Service]
-ExecStart=/opt/hypersomnia/Hypersomnia.AppImage --dedicated-server --no-router
+ExecStart=/opt/hypersomnia/Hypersomnia.AppImage --dedicated-server --sync-external-arenas
 Restart=on-failure
 User=${systemuser}