Add a 500ms delay to setInterval to reduce CPU load

src/y-websocket.js

@@ -251,7 +251,7 @@ export class WebsocketProvider extends Observable {
         // updates (which are updated every 15 seconds)
         /** @type {WebSocket} */ (this.ws).close()
       }
-    })
+    }, 500)
     if (connect) {
       this.connect()
     }