diff --git a/deps/submodules/minirtc b/deps/submodules/minirtc
index 9313ae8b..531a1924 160000
--- a/deps/submodules/minirtc
+++ b/deps/submodules/minirtc
@@ -1 +1 @@
-Subproject commit 9313ae8b926daee55ebdcb9a330154f3c923097e
+Subproject commit 531a19249924aef40312dbf515b5717ce5bcbd0e
diff --git a/docs/BUILD.md b/docs/BUILD.md
index e6af16b7..b5e346f0 100644
--- a/docs/BUILD.md
+++ b/docs/BUILD.md
@@ -11,7 +11,7 @@
 
 ## Windows
 
-安装 Visual Studio 2022 的“使用 C++ 的桌面开发”工作负载及 Windows SDK，并安装 Xmake。在开发者 PowerShell 中执行：
+安装 Visual Studio 2022 的“使用 C++ 的桌面开发”工作负载、Windows SDK 和“适用于 Windows 的 C++ Clang 编译器”组件，并安装 Xmake。Windows x64 的 libyuv 使用 clang-cl 编译，以启用 SIMD 图像转换和缩放；主程序仍使用 MSVC。在开发者 PowerShell 中执行：
 
 ```powershell
 git clone --recurse-submodules https://github.com/kunkundi/crossdesk.git
@@ -21,6 +21,8 @@ xmake b -vy crossdesk
 xmake r crossdesk
 ```
 
+性能复测应使用 `release`；`debug` 保留调试信息并关闭主程序编译优化。
+
 安装包还使用 NSIS，需将仓库中的 [nsProcess.dll](../apps/desktop/scripts/windows/nsProcess.dll) 放入 NSIS 的 `Plugins/x86-unicode` 目录，并确保 `makensis` 在 `PATH` 中。完成 Release 编译后运行：
 
 ```powershell
diff --git a/docs/BUILD_EN.md b/docs/BUILD_EN.md
index ad817276..ce5da9ae 100644
--- a/docs/BUILD_EN.md
+++ b/docs/BUILD_EN.md
@@ -11,7 +11,7 @@ After cloning, run build and packaging commands from the repository root. The [X
 
 ## Windows
 
-Install Visual Studio 2022 with the **Desktop development with C++** workload and Windows SDK, plus Xmake. In a developer PowerShell, run:
+Install Visual Studio 2022 with the **Desktop development with C++** workload, Windows SDK, and **C++ Clang Compiler for Windows** component, plus Xmake. Windows x64 builds use clang-cl for libyuv to enable SIMD conversion and scaling; the application still uses MSVC. In a developer PowerShell, run:
 
 ```powershell
 git clone --recurse-submodules https://github.com/kunkundi/crossdesk.git
@@ -21,6 +21,8 @@ xmake b -vy crossdesk
 xmake r crossdesk
 ```
 
+Use `release` for performance measurements; `debug` keeps symbols and disables application compiler optimizations.
+
 Installer packaging also uses NSIS. Copy the repository's [nsProcess.dll](../apps/desktop/scripts/windows/nsProcess.dll) into NSIS's `Plugins/x86-unicode` directory and ensure `makensis` is on `PATH`. After building Release, run:
 
 ```powershell