diff --git a/env.example b/env.example
index 4515fe34..24fb11a1 100644
--- a/env.example
+++ b/env.example
@@ -113,7 +113,7 @@ EMBEDDING_BINDING_HOST=http://localhost:11434
 ### Num of chunks send to Embedding in single request
 # EMBEDDING_BATCH_NUM=10
 ### Max concurrency requests for Embedding
-# EMBEDDING_FUNC_MAX_ASYNC=16
+# EMBEDDING_FUNC_MAX_ASYNC=8
 ### Maximum tokens sent to Embedding for each chunk (no longer in use?)
 # MAX_EMBED_TOKENS=8192
 ### Optional for Azure
diff --git a/lightrag/lightrag.py b/lightrag/lightrag.py
index feb7ab16..6b85906a 100644
--- a/lightrag/lightrag.py
+++ b/lightrag/lightrag.py
@@ -205,7 +205,7 @@ class LightRAG:
     """Batch size for embedding computations."""
 
     embedding_func_max_async: int = field(
-        default=int(os.getenv("EMBEDDING_FUNC_MAX_ASYNC", 16))
+        default=int(os.getenv("EMBEDDING_FUNC_MAX_ASYNC", 8))
     )
     """Maximum number of concurrent embedding function calls."""