diff --git a/app/src/main/java/io/legado/app/ui/config/PrefDelegate.kt b/app/src/main/java/io/legado/app/ui/config/PrefDelegate.kt
index 9dad8c6f0..d1bcf32d2 100644
--- a/app/src/main/java/io/legado/app/ui/config/PrefDelegate.kt
+++ b/app/src/main/java/io/legado/app/ui/config/PrefDelegate.kt
@@ -35,6 +35,7 @@ fun <T> prefDelegate(
     key: String,
     defaultValue: T,
     lifecycleOwner: LifecycleOwner? = null,
+    sync: Boolean = false,
     onValueChange: ((T) -> Unit)? = null
 ): PrefDelegate<T> {
     return object : PrefDelegate<T>, SharedPreferences.OnSharedPreferenceChangeListener, DefaultLifecycleObserver {
@@ -85,7 +86,7 @@ fun <T> prefDelegate(
         override fun setValue(thisRef: Any?, property: KProperty<*>, value: T) {
             if (_value.value != value) {
                 when (value) {
-                    is String? -> appCtx.putPrefStringSync(key, value)
+                    is String? -> if (sync) appCtx.putPrefStringSync(key, value) else appCtx.putPrefString(key, value)
                     is Int -> appCtx.putPrefInt(key, value)
                     is Boolean -> appCtx.putPrefBoolean(key, value)
                     is Long -> appCtx.putPrefLong(key, value)
@@ -112,8 +113,9 @@ fun <T> prefStateDelegate(
     key: String,
     defaultValue: T,
     lifecycleOwner: LifecycleOwner? = null,
+    sync: Boolean = false,
     onValueChange: ((T) -> Unit)? = null
 ): PrefStateDelegate<T> {
-    val delegate = prefDelegate(key, defaultValue, lifecycleOwner, onValueChange)
+    val delegate = prefDelegate(key, defaultValue, lifecycleOwner, sync, onValueChange)
     return PrefStateDelegate(delegate)
 }
\ No newline at end of file
diff --git a/app/src/main/java/io/legado/app/ui/config/otherConfig/OtherConfig.kt b/app/src/main/java/io/legado/app/ui/config/otherConfig/OtherConfig.kt
index 538b8bf64..0dd7d5ad6 100644
--- a/app/src/main/java/io/legado/app/ui/config/otherConfig/OtherConfig.kt
+++ b/app/src/main/java/io/legado/app/ui/config/otherConfig/OtherConfig.kt
@@ -8,7 +8,8 @@ object OtherConfig {
 
     var language by prefDelegate(
         PreferKey.language,
-        "auto"
+        "auto",
+        sync = true
     )
 
     var updateToVariant by prefDelegate(