diff --git a/projects/Fusion/options b/projects/Fusion/options
index a499f8d3af..1dda82ad16 100644
--- a/projects/Fusion/options
+++ b/projects/Fusion/options
@@ -75,7 +75,7 @@
   OPTIMIZATIONS="speed"
 
 # Project CFLAGS
-  PROJECT_CFLAGS="-mfpmath=sse -msse2 -mssse3 -ftree-vectorize"
+  PROJECT_CFLAGS="-mfpmath=sse -msse2 -mssse3"
 
 # LTO (Link Time Optimazion) support
   LTO_SUPPORT="no"
diff --git a/projects/ION/options b/projects/ION/options
index 8fe9e4d41b..9661063dc7 100644
--- a/projects/ION/options
+++ b/projects/ION/options
@@ -75,7 +75,7 @@
   OPTIMIZATIONS="speed"
 
 # Project CFLAGS
-  PROJECT_CFLAGS="-mfpmath=sse -msse2 -mssse3 -mmovbe -ftree-vectorize"
+  PROJECT_CFLAGS="-mfpmath=sse -msse2 -mssse3 -mmovbe"
 
 # LTO (Link Time Optimazion) support
   LTO_SUPPORT="no"
diff --git a/projects/Intel/options b/projects/Intel/options
index 808a3e55e0..7e49c43972 100644
--- a/projects/Intel/options
+++ b/projects/Intel/options
@@ -75,7 +75,7 @@
   OPTIMIZATIONS="speed"
 
 # Project CFLAGS
-  PROJECT_CFLAGS="-mfpmath=sse -msse2 -mssse3 -mmovbe -ftree-vectorize"
+  PROJECT_CFLAGS="-mfpmath=sse -msse2 -mssse3"
 
 # LTO (Link Time Optimazion) support
   LTO_SUPPORT="no"
diff --git a/projects/Ultra/options b/projects/Ultra/options
index 1af99922f9..306b2dd3c1 100644
--- a/projects/Ultra/options
+++ b/projects/Ultra/options
@@ -75,10 +75,10 @@
   OPTIMIZATIONS="speed"
 
 # Project CFLAGS
-  PROJECT_CFLAGS="-mfpmath=sse -msse2 -mssse3 -mmovbe -ftree-vectorize"
+  PROJECT_CFLAGS="-mfpmath=sse -msse2 -mssse3 -mmovbe"
 
 # LTO (Link Time Optimazion) support
-  LTO_SUPPORT="no"
+  LTO_SUPPORT="yes"
 
 # GOLD (Google Linker) support
   GOLD_SUPPORT="yes"