diff --git a/3rdparty/CMakeLists.txt b/3rdparty/CMakeLists.txt
index 9b90a045255a..6a5fb2182ec7 100644
--- a/3rdparty/CMakeLists.txt
+++ b/3rdparty/CMakeLists.txt
@@ -1,7 +1,6 @@
 
 project(3rdparty)
 
-option(OPT_BOX2D_OPTIMIZED "" OFF)
 option(AX_WITH_JPEG "Build with internal jpeg support" ON)
 option(AX_WITH_WEBP "Build with internal webp support" ON)
 option(AX_WITH_CLIPPER2 "Build with internal Clipper2 support" ON)
@@ -253,12 +252,7 @@ ax_add_3rd(png)
 
 if(AX_ENABLE_PHYSICS)
     set(box2d_opts "BOX2D_BUILD_UNIT_TESTS OFF" "BOX2D_BUILD_TESTBED OFF")
-    if(OPT_BOX2D_OPTIMIZED)
-        _1kfetch(box2d-optimized)
-        ax_add_3rd(${box2d-optimized_SOURCE_DIR} TARGETS box2d-optimized OPTIONS ${box2d_opts})
-    else()
-        ax_add_3rd(box2d OPTIONS ${box2d_opts})
-    endif()
+    ax_add_3rd(box2d OPTIONS ${box2d_opts})
 endif()
 
 if(AX_ENABLE_PHYSICS)
diff --git a/3rdparty/README.md b/3rdparty/README.md
index bb209b76bcd1..aa5c0a90f374 100644
--- a/3rdparty/README.md
+++ b/3rdparty/README.md
@@ -14,11 +14,6 @@
 - Version: 2.4.1
 - License: MIT
 
-## Box2D-optimized
-- Upstream: https://github.com/mtsamis/box2d-optimized
-- Version: 7ef46c1
-- License: MIT
-
 ## Bullet
 - [![Upstream](https://img.shields.io/github/v/release/bulletphysics/bullet3?label=Upstream)](https://github.com/bulletphysics/bullet3)
 - Version: 3.25
diff --git a/README.md b/README.md
index a52a0504dfe5..29d575e8f227 100644
--- a/README.md
+++ b/README.md
@@ -75,9 +75,8 @@ Axmol Engine has iterated and improved over the Cocos2d-x v4.0 base. Now is fast
 * UWP (x64, arm64)
 * Wasm32
 
-**Supported 2D physics engines** ([more info here](https://github.com/axmolengine/axmol/wiki/2D-Physics-Engines-informations)):
+**Supported 2D physics engines** ([more info here](https://github.com/axmolengine/axmol/wiki/2D-Physics-Engines-Information)):
 * Box2D
-* Box2D-optimized
 * Chipmunk2D
 
 **Supported 3D physics engines**:
diff --git a/README_CN.md b/README_CN.md
index e949ad6eb7f0..df3244c47ba9 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -82,7 +82,6 @@ Axmol 引擎在 Cocos2d-x v4.0 的基础上进行迭代和改进。现在速度
 **支持2D物理引擎** ([更多相关信息](https://github.com/axmolengine/axmol/wiki/2D-Physics-Engines-informations)):
 
 * Box2D
-* Box2D-optimized
 * Chipmunk2D
 
 **支持3D物理引擎**: