diff --git a/CMakeLists.txt b/CMakeLists.txt
index 65d4d45..1945ce1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -196,7 +196,7 @@ if (NOT ENABLE_THREAD_LOCAL)
 endif ()
 
 # configure use of platform-specific APIs for optimizing CopyHelper
-option(USE_PLATFORM_SPECIFIC_API_FOR_OPTIMIZING_COPY_HELPER "enables use of platform-specific APIs for optimizing CopyHelper" ON)
+option(USE_PLATFORM_SPECIFIC_API_FOR_OPTIMIZING_COPY_HELPER "enables use of platform-specific APIs for optimizing CopyHelper" OFF)
 if (USE_PLATFORM_SPECIFIC_API_FOR_OPTIMIZING_COPY_HELPER)
     list(APPEND META_PUBLIC_COMPILE_DEFINITIONS ${META_PROJECT_VARNAME}_USE_PLATFORM_SPECIFIC_API_FOR_OPTIMIZING_COPY_HELPER)
 endif ()