diff --git a/compiler.cmake b/compiler.cmake
index 87e6ba5..50ec4e3 100644
--- a/compiler.cmake
+++ b/compiler.cmake
@@ -14,8 +14,8 @@ IF(WIN32)
 
         OPTION(MSVC_USE_DLL "use MSVC DLL" ON)
 
-        SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /std:c17 /arch:AVX512")
-        SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /std:c17 /std:c++20 /arch:AVX512")
+        SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /std:c17 /arch:AVX2")
+        SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /std:c17 /std:c++20 /arch:AVX2")
 
         OPTION(MSVC_USE_fsanitize "USE fsanitize" OFF)