diff --git a/src/matrix.rs b/src/matrix.rs
index 814e36e716b2f2c0ed4e5269e23c5abd4827cdc9..10ea74d421b3f023528a4b7621df8e8c1d129b50 100644
--- a/src/matrix.rs
+++ b/src/matrix.rs
@@ -16,7 +16,7 @@ use matrix_sdk::{
     },
     Client, Result, SyncSettings,
 };
-use std::{convert::TryFrom, lazy::SyncLazy, process::abort, sync::Arc, sync::Mutex};
+use std::{convert::TryFrom, lazy::SyncLazy, process::abort, sync::Arc, sync::Mutex, time};
 use tokio::time::{sleep, Duration};
 
 async fn join_room(room: &Invited) {
@@ -101,6 +101,7 @@ pub async fn connect_and_handle(config: Config) -> Result<()> {
     let on_msg_room_event = |ev: SyncMessageEvent<MessageEventContent>,
                              room: Room,
                              _encryption_info: Option<EncryptionInfo>| async {
+        let now = time::Instant::now();
         let sender_id = ev.sender;
         if sender_id.as_str() == room.own_user_id().as_str() {
             return ();
@@ -126,15 +127,17 @@ pub async fn connect_and_handle(config: Config) -> Result<()> {
                             res = pkg.handle(&joined, &sender_id, args);
                         }
 
-                        joined
-                            .send(
-                                AnyMessageEventContent::RoomMessage(
-                                    MessageEventContent::text_html(res.clone(), res),
-                                ),
-                                None,
-                            )
-                            .await
-                            .unwrap();
+                        let msg = AnyMessageEventContent::RoomMessage(
+                            MessageEventContent::text_html(res.clone(), res),
+                        );
+                        let elapsed_before_send = now.elapsed();
+                        joined.send(msg, None).await.unwrap();
+                        let elapsed_after_send = now.elapsed();
+                        warn!(
+                            "Elapsed before send {}ms, elapsed after send {}ms",
+                            elapsed_before_send.as_millis(),
+                            elapsed_after_send.as_millis()
+                        );
                     }
                 }
             }