diff --git a/create_catalog.lua b/create_catalog.lua
index 5cff333..8267068 100644
--- a/create_catalog.lua
+++ b/create_catalog.lua
@@ -25,7 +25,7 @@ function mapblock_lib.create_catalog(filename, pos1, pos2, options)
 
 	-- default to async serialization
 	options = options or {}
-	options.delay = options.delay or 0.2
+	options.delay = options.delay or 0.1
 	options.callback = options.callback or function() end
 	options.progress_callback = options.progress_callback or function() end
 
diff --git a/get_catalog.lua b/get_catalog.lua
index 224b713..81d41fb 100644
--- a/get_catalog.lua
+++ b/get_catalog.lua
@@ -136,7 +136,7 @@ function Catalog:deserialize_all(target_mapblock_pos, options)
 	local count = 0
 
 	options = options or {}
-	options.delay = options.delay or 0.2
+	options.delay = options.delay or 0.1
 	options.rotate_y = options.rotate_y or 0
 	options.callback = options.callback or function() end
 	options.progress_callback = options.progress_callback or function() end
diff --git a/readme.md b/readme.md
index 6245300..e237627 100644
--- a/readme.md
+++ b/readme.md
@@ -64,7 +64,7 @@ local mb_pos1 = { x=0, y=0, z=0 }
 local mb_pos2 = { x=1, y=1, z=1 }
 local options = {
     -- optional: delay between operations
-    delay = 0.2,
+    delay = 0.1,
     -- optional: called when done
     callback = function()
         print("done!")