try to make code performant, lets see if this will work.

CMakeLists.txt

@@ -96,6 +96,17 @@ set(RESOURCES
 # target
 add_executable(SubWave ${SOURCES} ${HEADERS} ${RESOURCES})
 
+if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
+    message(STATUS "Setting build type to 'RelWithDebInfo' as none was specified.")
+    set(CMAKE_BUILD_TYPE "RelWithDebInfo" CACHE STRING "Choose the type of build." FORCE)
+endif()
+
+if(MSVC)
+    target_compile_options(SubWave PRIVATE /O2 /fp:fast)
+else()
+    target_compile_options(SubWave PRIVATE -O3 -ffast-math -march=native)
+endif()
+
 # headers
 target_include_directories(SubWave PRIVATE
     src