diff --git a/Makefile b/Makefile
index bc7b750b..59efc0ef 100644
--- a/Makefile
+++ b/Makefile
@@ -1,28 +1,24 @@
 PREFIX = /usr/local
 
 legacyrenderer:
-	cmake --no-warn-unused-cli -DCMAKE_BUILD_TYPE:STRING=Release -DCMAKE_INSTALL_PREFIX:STRING=${PREFIX} -DLEGACY_RENDERER:BOOL=true -S . -B ./build -G Ninja
-	cmake --build ./build --config Release --target all
-	chmod -R 777 ./build
+	cmake --no-warn-unused-cli -DCMAKE_BUILD_TYPE:STRING=Release -DCMAKE_INSTALL_PREFIX:STRING=${PREFIX} -DLEGACY_RENDERER:BOOL=true -S . -B ./buildZ
+	cmake --build ./build --config Release --target all -j`nproc 2>/dev/null || getconf NPROCESSORS_CONF`
 
 legacyrendererdebug:
-	cmake --no-warn-unused-cli -DCMAKE_BUILD_TYPE:STRING=Debug -DCMAKE_INSTALL_PREFIX:STRING=${PREFIX} -DLEGACY_RENDERER:BOOL=true -S . -B ./build -G Ninja
-	cmake --build ./build --config Release --target all
-	chmod -R 777 ./build
+	cmake --no-warn-unused-cli -DCMAKE_BUILD_TYPE:STRING=Debug -DCMAKE_INSTALL_PREFIX:STRING=${PREFIX} -DLEGACY_RENDERER:BOOL=true -S . -B ./build
+	cmake --build ./build --config Release --target all -j`nproc 2>/dev/null || getconf NPROCESSORS_CONF`
 
 release:
-	cmake --no-warn-unused-cli -DCMAKE_BUILD_TYPE:STRING=Release -DCMAKE_INSTALL_PREFIX:STRING=${PREFIX} -S . -B ./build -G Ninja
-	cmake --build ./build --config Release --target all
-	chmod -R 777 ./build
+	cmake --no-warn-unused-cli -DCMAKE_BUILD_TYPE:STRING=Release -DCMAKE_INSTALL_PREFIX:STRING=${PREFIX} -S . -B ./build
+	cmake --build ./build --config Release --target all -j`nproc 2>/dev/null || getconf NPROCESSORS_CONF`
 
 debug:
-	cmake --no-warn-unused-cli -DCMAKE_BUILD_TYPE:STRING=Debug -DCMAKE_INSTALL_PREFIX:STRING=${PREFIX} -S . -B ./build -G Ninja
-	cmake --build ./build --config Debug --target all
-	chmod -R 777 ./build
+	cmake --no-warn-unused-cli -DCMAKE_BUILD_TYPE:STRING=Debug -DCMAKE_INSTALL_PREFIX:STRING=${PREFIX} -S . -B ./build
+	cmake --build ./build --config Debug --target all -j`nproc 2>/dev/null || getconf NPROCESSORS_CONF`
 
 nopch:
-	cmake --no-warn-unused-cli -DCMAKE_BUILD_TYPE:STRING=Release -DCMAKE_INSTALL_PREFIX:STRING=${PREFIX} -DCMAKE_DISABLE_PRECOMPILE_HEADERS=ON -S . -B ./build -G Ninja
-	cmake --build ./build --config Release --target all
+	cmake --no-warn-unused-cli -DCMAKE_BUILD_TYPE:STRING=Release -DCMAKE_INSTALL_PREFIX:STRING=${PREFIX} -DCMAKE_DISABLE_PRECOMPILE_HEADERS=ON -S . -B ./build
+	cmake --build ./build --config Release --target all -j`nproc 2>/dev/null || getconf NPROCESSORS_CONF`
 
 clear:
 	rm -rf build