diff --git a/src/xenia/app/premake5.lua b/src/xenia/app/premake5.lua
index 4fd767c05..11a7a0100 100644
--- a/src/xenia/app/premake5.lua
+++ b/src/xenia/app/premake5.lua
@@ -119,11 +119,10 @@ project("xenia-app")
       "xenia-gpu-d3d12-trace-viewer",
       "xenia-ui-window-d3d12-demo",
     })
-  filter({"configurations:Release", "platforms:Windows"})
-    buildoptions({
-      "/Os",
-      "/O1"
-    })
+--  filter({"configurations:Release", "platforms:Windows"})
+--    buildoptions({
+--      "/O1",
+--    })
 
   filter("platforms:Windows")
     -- Only create the .user file if it doesn't already exist.
diff --git a/src/xenia/cpu/premake5.lua b/src/xenia/cpu/premake5.lua
index c689ff8d3..14a423126 100644
--- a/src/xenia/cpu/premake5.lua
+++ b/src/xenia/cpu/premake5.lua
@@ -23,8 +23,7 @@ project("xenia-cpu")
 
 include("testing")
 include("ppc/testing")
-filter({"configurations:Release", "platforms:Windows"})
-buildoptions({
-  "/Os",
-  "/O1"
-})
\ No newline at end of file
+--  filter({"configurations:Release", "platforms:Windows"})
+--  buildoptions({
+--    "/O1",
+--  })
diff --git a/src/xenia/debug/ui/premake5.lua b/src/xenia/debug/ui/premake5.lua
index dc3724ce9..2afdeabd5 100644
--- a/src/xenia/debug/ui/premake5.lua
+++ b/src/xenia/debug/ui/premake5.lua
@@ -12,12 +12,11 @@ project("xenia-debug-ui")
     "xenia-cpu",
     "xenia-ui",
   })
-  filter({"configurations:Release", "platforms:Windows"})
-    buildoptions({
-      "/Os",
-      "/O1"
-    })
-  filter{}
+--  filter({"configurations:Release", "platforms:Windows"})
+--    buildoptions({
+--      "/O1",
+--    })
+--  filter{}
   defines({
   })
   includedirs({
diff --git a/src/xenia/ui/d3d12/premake5.lua b/src/xenia/ui/d3d12/premake5.lua
index c650b1b0f..9e667bbe9 100644
--- a/src/xenia/ui/d3d12/premake5.lua
+++ b/src/xenia/ui/d3d12/premake5.lua
@@ -10,12 +10,11 @@ project("xenia-ui-d3d12")
     "xenia-base",
     "xenia-ui",
   })
-  filter({"configurations:Release", "platforms:Windows"})
-    buildoptions({
-      "/Os",
-      "/O1"
-    })
-  filter {}
+--  filter({"configurations:Release", "platforms:Windows"})
+--    buildoptions({
+--      "/O1",
+--    })
+--  filter {}
   local_platform_files()
   files({
     "../shaders/bytecode/d3d12_5_1/*.h",
diff --git a/src/xenia/ui/premake5.lua b/src/xenia/ui/premake5.lua
index b6254938a..fcb782b45 100644
--- a/src/xenia/ui/premake5.lua
+++ b/src/xenia/ui/premake5.lua
@@ -14,11 +14,10 @@ project("xenia-ui")
   local_platform_files()
   removefiles({"*_demo.cc"})
   removefiles({"windowed_app_main_*.cc"})
-  filter({"configurations:Release", "platforms:Windows"})
-    buildoptions({
-      "/Os",
-      "/O1"
-    })
+--  filter({"configurations:Release", "platforms:Windows"})
+--    buildoptions({
+--      "/O1",
+--    })
   filter("platforms:Android-*")
     -- Exports JNI functions.
     wholelib("On")
diff --git a/src/xenia/ui/vulkan/premake5.lua b/src/xenia/ui/vulkan/premake5.lua
index f732bcf24..3c1bfb2a3 100644
--- a/src/xenia/ui/vulkan/premake5.lua
+++ b/src/xenia/ui/vulkan/premake5.lua
@@ -10,12 +10,11 @@ project("xenia-ui-vulkan")
     "xenia-base",
     "xenia-ui",
   })
-  filter({"configurations:Release", "platforms:Windows"})
-    buildoptions({
-      "/Os",
-      "/O1"
-    })
-  filter {}
+--  filter({"configurations:Release", "platforms:Windows"})
+--    buildoptions({
+--      "/O1",
+--    })
+--  filter {}
   includedirs({
     project_root.."/third_party/Vulkan-Headers/include",
   })
diff --git a/src/xenia/vfs/premake5.lua b/src/xenia/vfs/premake5.lua
index e33df18f6..214f18864 100644
--- a/src/xenia/vfs/premake5.lua
+++ b/src/xenia/vfs/premake5.lua
@@ -11,12 +11,11 @@ project("xenia-vfs")
   })
   defines({
   })
-  filter({"configurations:Release", "platforms:Windows"})
-    buildoptions({
-      "/Os",
-      "/O1"
-    })
-  filter {}
+--  filter({"configurations:Release", "platforms:Windows"})
+--    buildoptions({
+--      "/O1",
+--    })
+--  filter {}
 
   recursive_platform_files()
   removefiles({"vfs_dump.cc"})
@@ -40,4 +39,3 @@ project("xenia-vfs-dump")
     project_root,
   })
 include("testing")
-