diff --git a/app/src/main/java/kr/co/vividnext/sodalive/live/room/LiveRoomActivity.kt b/app/src/main/java/kr/co/vividnext/sodalive/live/room/LiveRoomActivity.kt
index 04bf1b33..84377768 100644
--- a/app/src/main/java/kr/co/vividnext/sodalive/live/room/LiveRoomActivity.kt
+++ b/app/src/main/java/kr/co/vividnext/sodalive/live/room/LiveRoomActivity.kt
@@ -12,9 +12,9 @@ import android.content.Context
 import android.content.Intent
 import android.graphics.Bitmap
 import android.graphics.Canvas
+import android.graphics.Matrix
 import android.graphics.Paint
 import android.graphics.Path
-import android.graphics.Matrix
 import android.graphics.Rect
 import android.graphics.Typeface
 import android.graphics.drawable.Drawable
@@ -47,7 +47,6 @@ import androidx.core.content.ContextCompat
 import androidx.core.graphics.toColorInt
 import androidx.core.graphics.withTranslation
 import androidx.core.net.toUri
-import androidx.lifecycle.lifecycleScope
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import coil.transform.CircleCropTransformation
@@ -70,7 +69,6 @@ import io.agora.rtm.RtmEventListener
 import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers
 import io.reactivex.rxjava3.core.Observable
 import io.reactivex.rxjava3.schedulers.Schedulers
-import kotlinx.coroutines.launch
 import kr.co.vividnext.sodalive.R
 import kr.co.vividnext.sodalive.agora.Agora
 import kr.co.vividnext.sodalive.base.BaseActivity
@@ -1408,7 +1406,7 @@ class LiveRoomActivity : BaseActivity<ActivityLiveRoomBinding>(ActivityLiveRoomB
                                 )
                             )
                             invalidateChat()
-                            lifecycleScope.launch { viewModel.addDonationCan(can) }
+                            viewModel.addDonationCan(can)
                             addSignature(signature)
                         }
                     },
@@ -1656,9 +1654,7 @@ class LiveRoomActivity : BaseActivity<ActivityLiveRoomBinding>(ActivityLiveRoomB
                                 )
                             )
                             invalidateChat()
-                            lifecycleScope.launch {
-                                viewModel.addDonationCan(message.can)
-                            }
+                            viewModel.addDonationCan(message.can)
 
                             if (message.signature != null) {
                                 addSignature(message.signature)
@@ -1684,27 +1680,23 @@ class LiveRoomActivity : BaseActivity<ActivityLiveRoomBinding>(ActivityLiveRoomB
                                 )
                             )
                             invalidateChat()
-                            lifecycleScope.launch {
-                                viewModel.addDonationCan(message.can)
-                            }
+                            viewModel.addDonationCan(message.can)
                         }
                     }
 
                     LiveRoomChatRawMessageType.HEART_DONATION -> {
                         handler.post {
                             addHeartMessage(nickname)
+                            viewModel.addHeartDonation()
                             addHeartAnimation()
-                            lifecycleScope.launch { viewModel.addHeartDonation() }
                         }
                     }
 
                     LiveRoomChatRawMessageType.BIG_HEART_DONATION -> {
                         handler.post {
                             addHeartMessage(nickname)
+                            viewModel.addHeartDonation(heartCount = message.can)
                             addBigHeartAnimation()
-                            lifecycleScope.launch {
-                                viewModel.addHeartDonation(heartCount = message.can)
-                            }
                         }
                     }
 
@@ -2076,7 +2068,7 @@ class LiveRoomActivity : BaseActivity<ActivityLiveRoomBinding>(ActivityLiveRoomB
                             handler.post {
                                 addHeartMessage(nickname)
                                 addHeartAnimation()
-                                lifecycleScope.launch { viewModel.addHeartDonation() }
+                                viewModel.addHeartDonation()
                             }
                         },
                         onFailure = {
@@ -2129,7 +2121,7 @@ class LiveRoomActivity : BaseActivity<ActivityLiveRoomBinding>(ActivityLiveRoomB
                             handler.post {
                                 addHeartMessage(nickname)
                                 addBigHeartAnimation()
-                                lifecycleScope.launch { viewModel.addHeartDonation(100) }
+                                viewModel.addHeartDonation(100)
                             }
                         },
                         onFailure = {
@@ -2566,7 +2558,8 @@ class LiveRoomActivity : BaseActivity<ActivityLiveRoomBinding>(ActivityLiveRoomB
                 val v0 = 100f + (1500f * Math.random().toFloat()) // 200..3000 px/s (초기 속도)
 
                 val rotateEnabled = Math.random() < 0.3
-                val rotationSpeed = if (rotateEnabled) 300f * Math.random().toFloat() else 0f // deg/s
+                val rotationSpeed =
+                    if (rotateEnabled) 300f * Math.random().toFloat() else 0f // deg/s
                 val rotation0 = (-180f + 360f * Math.random().toFloat())
 
 
@@ -2865,7 +2858,7 @@ class LiveRoomActivity : BaseActivity<ActivityLiveRoomBinding>(ActivityLiveRoomB
                                 )
                             )
                             invalidateChat()
-                            lifecycleScope.launch { viewModel.addDonationCan(can) }
+                            viewModel.addDonationCan(can)
                         }
                     },
                     onFailure = {
diff --git a/app/src/main/java/kr/co/vividnext/sodalive/live/room/LiveRoomViewModel.kt b/app/src/main/java/kr/co/vividnext/sodalive/live/room/LiveRoomViewModel.kt
index 607c1011..c888b7cd 100644
--- a/app/src/main/java/kr/co/vividnext/sodalive/live/room/LiveRoomViewModel.kt
+++ b/app/src/main/java/kr/co/vividnext/sodalive/live/room/LiveRoomViewModel.kt
@@ -7,8 +7,6 @@ import com.orhanobut.logger.Logger
 import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers
 import io.reactivex.rxjava3.core.Single
 import io.reactivex.rxjava3.schedulers.Schedulers
-import kotlinx.coroutines.sync.Mutex
-import kotlinx.coroutines.sync.withLock
 import kr.co.vividnext.sodalive.base.BaseViewModel
 import kr.co.vividnext.sodalive.common.ApiResponse
 import kr.co.vividnext.sodalive.common.SharedPreferenceManager
@@ -100,8 +98,6 @@ class LiveRoomViewModel(
 
     private val blockedMemberIdList: MutableList<Long> = mutableListOf()
 
-    val mutex = Mutex()
-
     fun getUserNickname(memberId: Int): String {
         for (manager in roomInfoResponse.managerList) {
             if (manager.id.toInt() == memberId) {
@@ -569,7 +565,11 @@ class LiveRoomViewModel(
 
     fun likeHeart(roomId: Long, heartCount: Int = 1, onSuccess: () -> Unit, onFailure: () -> Unit) {
         compositeDisposable.add(
-            repository.likeHeart(roomId, heartCount = heartCount, token = "Bearer ${SharedPreferenceManager.token}")
+            repository.likeHeart(
+                roomId,
+                heartCount = heartCount,
+                token = "Bearer ${SharedPreferenceManager.token}"
+            )
                 .subscribeOn(Schedulers.io())
                 .observeOn(AndroidSchedulers.mainThread())
                 .subscribe(
@@ -676,16 +676,12 @@ class LiveRoomViewModel(
         )
     }
 
-    suspend fun addDonationCan(can: Int) {
-        mutex.withLock {
-            _totalDonationCan.postValue(totalDonationCan.value!! + can)
-        }
+    fun addDonationCan(can: Int) {
+        _totalDonationCan.postValue(totalDonationCan.value!! + can)
     }
 
-    suspend fun addHeartDonation(heartCount: Int = 1) {
-        mutex.withLock {
-            _totalHeartCount.postValue(totalHeartCount.value!! + heartCount)
-        }
+    fun addHeartDonation(heartCount: Int = 1) {
+        _totalHeartCount.postValue(totalHeartCount.value!! + heartCount)
     }
 
     fun donationStatus(roomId: Long, onSuccess: (GetLiveRoomDonationStatusResponse) -> Unit) {