diff --git a/app/src/main/java/io/legado/app/ui/readbook/ReadBookViewModel.kt b/app/src/main/java/io/legado/app/ui/readbook/ReadBookViewModel.kt
index 009c88979..841b06199 100644
--- a/app/src/main/java/io/legado/app/ui/readbook/ReadBookViewModel.kt
+++ b/app/src/main/java/io/legado/app/ui/readbook/ReadBookViewModel.kt
@@ -236,10 +236,9 @@ class ReadBookViewModel(application: Application) : BaseViewModel(application) {
         curTextChapter = nextTextChapter
         nextTextChapter = null
         bookData.value?.let {
-            loadContent(it, durChapterIndex.plus(1))
             launch(IO) {
-                for (i in 2..10) {
-                    delay(1000L)
+                for (i in 0..10) {
+                    delay(100)
                     bookData.value?.let { book ->
                         download(book, durChapterIndex + i)
                     }
@@ -254,7 +253,14 @@ class ReadBookViewModel(application: Application) : BaseViewModel(application) {
         curTextChapter = prevTextChapter
         prevTextChapter = null
         bookData.value?.let {
-            loadContent(it, durChapterIndex.minus(1))
+            launch(IO) {
+                for (i in -5..0) {
+                    delay(100)
+                    bookData.value?.let { book ->
+                        download(book, durChapterIndex + i)
+                    }
+                }
+            }
         }
     }