diff --git a/stepmania/PBProject/stepmania.pbproj/project.pbxproj b/stepmania/PBProject/stepmania.pbproj/project.pbxproj
index 55dc6595b5..fdd214c8ac 100755
--- a/stepmania/PBProject/stepmania.pbproj/project.pbxproj
+++ b/stepmania/PBProject/stepmania.pbproj/project.pbxproj
@@ -6402,6 +6402,7 @@
 				GCC_ENABLE_CPP_RTTI = YES;
 				GCC_ENABLE_SSE3_EXTENSIONS = YES;
 				GCC_INPUT_FILETYPE = automatic;
+				GCC_MODEL_TUNING = G5;
 				GCC_OPTIMIZATION_LEVEL = 0;
 				GCC_PRECOMPILE_PREFIX_HEADER = YES;
 				GCC_PREFIX_HEADER = "$(SRCROOT)/../src/archutils/Darwin/StepMania.pch";
@@ -6458,6 +6459,7 @@
 					"-fconstant-cfstrings",
 					"-fsingle-precision-constant",
 					"-fno-exceptions",
+					"-falign-loops=16",
 				);
 				OTHER_LDFLAGS = "-lz";
 				PREBINDING = "$(PREBINDING_$(CURRENT_ARCH))";
@@ -6925,6 +6927,7 @@
 				GCC_ENABLE_CPP_RTTI = YES;
 				GCC_ENABLE_SSE3_EXTENSIONS = YES;
 				GCC_INPUT_FILETYPE = automatic;
+				GCC_MODEL_TUNING = G5;
 				GCC_PRECOMPILE_PREFIX_HEADER = YES;
 				GCC_PREFIX_HEADER = "$(SRCROOT)/../src/archutils/Darwin/StepMania.pch";
 				GCC_SYMBOLS_PRIVATE_EXTERN = NO;
@@ -6980,6 +6983,7 @@
 					"-fconstant-cfstrings",
 					"-fsingle-precision-constant",
 					"-fno-exceptions",
+					"-falign-loops=16",
 				);
 				OTHER_LDFLAGS = "-lz";
 				PREBINDING = "$(PREBINDING_$(CURRENT_ARCH))";
@@ -7073,6 +7077,7 @@
 				GCC_ENABLE_CPP_RTTI = YES;
 				GCC_ENABLE_SSE3_EXTENSIONS = YES;
 				GCC_INPUT_FILETYPE = automatic;
+				GCC_MODEL_TUNING = G5;
 				GCC_PRECOMPILE_PREFIX_HEADER = YES;
 				GCC_PREFIX_HEADER = "$(SRCROOT)/../src/archutils/Darwin/StepMania.pch";
 				GCC_SYMBOLS_PRIVATE_EXTERN = NO;
@@ -7128,6 +7133,7 @@
 					"-fconstant-cfstrings",
 					"-fsingle-precision-constant",
 					"-fno-exceptions",
+					"-falign-loops=16",
 				);
 				OTHER_LDFLAGS = "-lz";
 				PREBINDING = "$(PREBINDING_$(CURRENT_ARCH))";