performance enhancements

server/classes/EventTimer.js

@@ -1,5 +1,7 @@
 const Timer = require('./Timer');
 const socketIo = require('socket.io');
+// DEBUG
+const { instrument } = require("@socket.io/admin-ui");
 
 /*
  * EventTimer adds functions specific to APP
@@ -71,6 +73,11 @@ class EventTimer extends Timer {
       },
     });
 
+    // DEBUG
+    instrument(this.io, {
+      auth: false
+    });
+
     // set recurrent emits
     this._interval = setInterval(
       () => this.broadcastTimer(),