diff --git a/app/src/main/java/io/legado/app/ui/book/changesource/ChangeBookSourceDialog.kt b/app/src/main/java/io/legado/app/ui/book/changesource/ChangeBookSourceDialog.kt
index 9a4a1ba47..46c1a8740 100644
--- a/app/src/main/java/io/legado/app/ui/book/changesource/ChangeBookSourceDialog.kt
+++ b/app/src/main/java/io/legado/app/ui/book/changesource/ChangeBookSourceDialog.kt
@@ -44,6 +44,7 @@ import io.legado.app.utils.viewbindingdelegate.viewBinding
 import kotlinx.coroutines.Dispatchers.IO
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.conflate
+import kotlinx.coroutines.flow.flowOn
 import kotlinx.coroutines.launch
 
 /**
@@ -204,7 +205,7 @@ class ChangeBookSourceDialog() : BaseDialogFragment(R.layout.dialog_book_change_
             }
         }
         launch {
-            appDb.bookSourceDao.flowEnabledGroups().conflate().collect {
+            appDb.bookSourceDao.flowEnabledGroups().flowOn(IO).conflate().collect {
                 groups.clear()
                 groups.addAll(it)
                 upGroupMenu()
diff --git a/app/src/main/java/io/legado/app/ui/book/changesource/ChangeChapterSourceDialog.kt b/app/src/main/java/io/legado/app/ui/book/changesource/ChangeChapterSourceDialog.kt
index 93c504856..755110bf1 100644
--- a/app/src/main/java/io/legado/app/ui/book/changesource/ChangeChapterSourceDialog.kt
+++ b/app/src/main/java/io/legado/app/ui/book/changesource/ChangeChapterSourceDialog.kt
@@ -47,8 +47,10 @@ import io.legado.app.utils.startActivity
 import io.legado.app.utils.toastOnUi
 import io.legado.app.utils.viewbindingdelegate.viewBinding
 import io.legado.app.utils.visible
+import kotlinx.coroutines.Dispatchers.IO
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.conflate
+import kotlinx.coroutines.flow.flowOn
 import kotlinx.coroutines.launch
 
 
@@ -230,7 +232,7 @@ class ChangeChapterSourceDialog() : BaseDialogFragment(R.layout.dialog_chapter_c
             }
         }
         launch {
-            appDb.bookSourceDao.flowEnabledGroups().conflate().collect {
+            appDb.bookSourceDao.flowEnabledGroups().flowOn(IO).conflate().collect {
                 groups.clear()
                 groups.addAll(it)
                 upGroupMenu()
diff --git a/app/src/main/java/io/legado/app/ui/book/search/SearchActivity.kt b/app/src/main/java/io/legado/app/ui/book/search/SearchActivity.kt
index af9fca043..b0381ff05 100644
--- a/app/src/main/java/io/legado/app/ui/book/search/SearchActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/search/SearchActivity.kt
@@ -31,6 +31,7 @@ import io.legado.app.utils.viewbindingdelegate.viewBinding
 import kotlinx.coroutines.Dispatchers.IO
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.flow.conflate
+import kotlinx.coroutines.flow.flowOn
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 import splitties.init.appCtx
@@ -279,7 +280,7 @@ class SearchActivity : VMBaseActivity<ActivityBookSearchBinding, SearchViewModel
             adapter.setItems(it)
         }
         launch {
-            appDb.bookSourceDao.flowEnabledGroups().collect {
+            appDb.bookSourceDao.flowEnabledGroups().flowOn(IO).collect {
                 groups = it
             }
         }
diff --git a/app/src/main/java/io/legado/app/ui/book/source/manage/BookSourceActivity.kt b/app/src/main/java/io/legado/app/ui/book/source/manage/BookSourceActivity.kt
index 2909270ee..1e6f1841d 100644
--- a/app/src/main/java/io/legado/app/ui/book/source/manage/BookSourceActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/source/manage/BookSourceActivity.kt
@@ -42,9 +42,11 @@ import io.legado.app.ui.widget.recycler.VerticalDivider
 import io.legado.app.utils.*
 import io.legado.app.utils.viewbindingdelegate.viewBinding
 import kotlinx.coroutines.*
+import kotlinx.coroutines.Dispatchers.IO
 import kotlinx.coroutines.flow.catch
 import kotlinx.coroutines.flow.conflate
 import kotlinx.coroutines.flow.flow
+import kotlinx.coroutines.flow.flowOn
 import kotlinx.coroutines.flow.map
 
 /**
@@ -321,7 +323,7 @@ class BookSourceActivity : VMBaseActivity<ActivityBookSourceBinding, BookSourceV
                 }
             }.catch {
                 AppLog.put("书源界面更新书源出错", it)
-            }.conflate().collect { data ->
+            }.flowOn(IO).conflate().collect { data ->
                 adapter.setItems(data, adapter.diffItemCallback)
                 itemTouchCallback.isCanDrag = sort == BookSourceSort.Default
                 delay(500)
@@ -336,10 +338,11 @@ class BookSourceActivity : VMBaseActivity<ActivityBookSourceBinding, BookSourceV
 
     private fun initLiveDataGroup() {
         launch {
-            appDb.bookSourceDao.flowGroups().conflate().collect {
+            appDb.bookSourceDao.flowGroups().flowOn(IO).conflate().collect {
                 groups.clear()
                 groups.addAll(it)
                 upGroupMenu()
+                delay(500)
             }
         }
     }
diff --git a/app/src/main/java/io/legado/app/ui/book/source/manage/GroupManageDialog.kt b/app/src/main/java/io/legado/app/ui/book/source/manage/GroupManageDialog.kt
index 2e2cf5860..2762d8f32 100644
--- a/app/src/main/java/io/legado/app/ui/book/source/manage/GroupManageDialog.kt
+++ b/app/src/main/java/io/legado/app/ui/book/source/manage/GroupManageDialog.kt
@@ -25,6 +25,8 @@ import io.legado.app.utils.applyTint
 import io.legado.app.utils.requestInputMethod
 import io.legado.app.utils.setLayout
 import io.legado.app.utils.viewbindingdelegate.viewBinding
+import kotlinx.coroutines.Dispatchers.IO
+import kotlinx.coroutines.flow.flowOn
 import kotlinx.coroutines.launch
 
 
@@ -55,7 +57,7 @@ class GroupManageDialog : BaseDialogFragment(R.layout.dialog_recycler_view),
 
     private fun initData() {
         launch {
-            appDb.bookSourceDao.flowGroups().collect {
+            appDb.bookSourceDao.flowGroups().flowOn(IO).collect {
                 adapter.setItems(it)
             }
         }
diff --git a/app/src/main/java/io/legado/app/ui/main/explore/ExploreFragment.kt b/app/src/main/java/io/legado/app/ui/main/explore/ExploreFragment.kt
index 7622a2d40..16afdc259 100644
--- a/app/src/main/java/io/legado/app/ui/main/explore/ExploreFragment.kt
+++ b/app/src/main/java/io/legado/app/ui/main/explore/ExploreFragment.kt
@@ -29,9 +29,11 @@ import io.legado.app.utils.setEdgeEffectColor
 import io.legado.app.utils.startActivity
 import io.legado.app.utils.viewbindingdelegate.viewBinding
 import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers.IO
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.flow.catch
 import kotlinx.coroutines.flow.conflate
+import kotlinx.coroutines.flow.flowOn
 import kotlinx.coroutines.launch
 
 /**
@@ -107,7 +109,7 @@ class ExploreFragment : VMBaseFragment<ExploreViewModel>(R.layout.fragment_explo
 
     private fun initGroupData() {
         launch {
-            appDb.bookSourceDao.flowExploreGroups().conflate().collect {
+            appDb.bookSourceDao.flowExploreGroups().flowOn(IO).conflate().collect {
                 groups.clear()
                 groups.addAll(it)
                 upGroupsMenu()