diff --git a/app/src/main/java/com/hippo/ehviewer/spider/SpiderDen.kt b/app/src/main/java/com/hippo/ehviewer/spider/SpiderDen.kt
index ee7418839..2125c02e5 100644
--- a/app/src/main/java/com/hippo/ehviewer/spider/SpiderDen.kt
+++ b/app/src/main/java/com/hippo/ehviewer/spider/SpiderDen.kt
@@ -323,7 +323,7 @@ class SpiderDen(private val mGalleryInfo: GalleryInfo) {
     }
 
     companion object {
-        private const val TRANSFER_BLOCK: Long = 40960
+        private const val TRANSFER_BLOCK: Long = 8192
 
         // We use data to store image file, and metadata for image type
         private val sCache by lazy {
@@ -365,4 +365,4 @@ class SpiderDen(private val mGalleryInfo: GalleryInfo) {
             return null
         }
     }
-}
\ No newline at end of file
+}