diff --git a/dadb/src/main/kotlin/dadb/AdbSync.kt b/dadb/src/main/kotlin/dadb/AdbSync.kt
index 023c255..5228635 100644
--- a/dadb/src/main/kotlin/dadb/AdbSync.kt
+++ b/dadb/src/main/kotlin/dadb/AdbSync.kt
@@ -196,7 +196,8 @@ class AdbSyncStream(
                 writeFrameHeader(DATA, read.toInt())
                 val sent = writeAll(this@AdbSyncStream.buffer)
                 check(read == sent)
-                flush()
+                // 优化：不要每 64KB 就 flush，让 BufferedSink 自动缓冲合并，
+                // 减少网络发送次数，提升传输速度
             }
         }
         stream.sink.apply {