diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5754616..2b67739 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,7 +4,7 @@ project(SPL)
 set(CMAKE_CXX_STANDARD 20)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
-add_compile_options(-O3)
+add_compile_options(-O2)
 
 file(GLOB_RECURSE TEST_SOURCES tests/*.cpp)
 file(GLOB_RECURSE SOURCES src/*.cpp)