diff --git a/etc/SuperBuild/cmake/Modules/BuildCURL.cmake b/etc/SuperBuild/cmake/Modules/BuildCURL.cmake
index aa5b3bb6..a8236a7c 100644
--- a/etc/SuperBuild/cmake/Modules/BuildCURL.cmake
+++ b/etc/SuperBuild/cmake/Modules/BuildCURL.cmake
@@ -16,6 +16,6 @@ ExternalProject_Add(
     DEPENDS Libssh2 ${OpenSSL} ZLIB
     GIT_REPOSITORY ${CURL_GIT_REPOSITORY}
     GIT_TAG ${CURL_GIT_TAG}
-    
+    GIT_SHALLOW 1
     LIST_SEPARATOR |
     CMAKE_ARGS ${CURL_ARGS})
diff --git a/etc/SuperBuild/cmake/Modules/BuildFreetype.cmake b/etc/SuperBuild/cmake/Modules/BuildFreetype.cmake
index 01144550..6ad30b1d 100644
--- a/etc/SuperBuild/cmake/Modules/BuildFreetype.cmake
+++ b/etc/SuperBuild/cmake/Modules/BuildFreetype.cmake
@@ -18,6 +18,6 @@ ExternalProject_Add(
     DEPENDS ZLIB
     GIT_REPOSITORY ${Freetype_GIT_REPOSITORY}
     GIT_TAG ${Freetype_GIT_TAG}
-    
+    GIT_SHALLOW 1
     LIST_SEPARATOR |
     CMAKE_ARGS ${Freetype_ARGS})
diff --git a/etc/SuperBuild/cmake/Modules/BuildImath.cmake b/etc/SuperBuild/cmake/Modules/BuildImath.cmake
index 039e5a2b..b40d90f5 100644
--- a/etc/SuperBuild/cmake/Modules/BuildImath.cmake
+++ b/etc/SuperBuild/cmake/Modules/BuildImath.cmake
@@ -12,6 +12,6 @@ ExternalProject_Add(
     PREFIX ${CMAKE_CURRENT_BINARY_DIR}/Imath
     GIT_REPOSITORY ${Imath_GIT_REPOSITORY}
     GIT_TAG ${Imath_GIT_TAG}
-    
+    GIT_SHALLOW 1
     LIST_SEPARATOR |
     CMAKE_ARGS ${Imath_ARGS})
diff --git a/etc/SuperBuild/cmake/Modules/BuildLCMS2.cmake b/etc/SuperBuild/cmake/Modules/BuildLCMS2.cmake
index 3fcecc09..dc0d272c 100644
--- a/etc/SuperBuild/cmake/Modules/BuildLCMS2.cmake
+++ b/etc/SuperBuild/cmake/Modules/BuildLCMS2.cmake
@@ -26,7 +26,7 @@ else()
 	PREFIX ${CMAKE_CURRENT_BINARY_DIR}/LCMS2
 	GIT_REPOSITORY "https://github.com/mm2/Little-CMS.git"
 	GIT_TAG lcms2.15
-	
+	GIT_SHALLOW 1
 	GIT_PROGRESS 1
 	CONFIGURE_COMMAND ${LCMS2_BUILD_COMMAND}
 	BUILD_IN_SOURCE 1)
diff --git a/etc/SuperBuild/cmake/Modules/BuildLibssh2.cmake b/etc/SuperBuild/cmake/Modules/BuildLibssh2.cmake
index 6b17b6c2..8ad9acca 100644
--- a/etc/SuperBuild/cmake/Modules/BuildLibssh2.cmake
+++ b/etc/SuperBuild/cmake/Modules/BuildLibssh2.cmake
@@ -15,7 +15,7 @@ ExternalProject_Add(
     DEPENDS ${OpenSSL} ZLIB
     GIT_REPOSITORY ${Libssh2_GIT_REPOSITORY}
     GIT_TAG ${Libssh2_GIT_TAG}
-    
+    GIT_SHALLOW 1
     PATCH_COMMAND ${CMAKE_COMMAND} -E copy_if_different
         ${CMAKE_CURRENT_SOURCE_DIR}/Libssh2-patch/CMakeLists.txt
         ${CMAKE_CURRENT_BINARY_DIR}/Libssh2/src/Libssh2/CMakeLists.txt
diff --git a/etc/SuperBuild/cmake/Modules/BuildOTIO.cmake b/etc/SuperBuild/cmake/Modules/BuildOTIO.cmake
index 6d2f7755..557ac84c 100644
--- a/etc/SuperBuild/cmake/Modules/BuildOTIO.cmake
+++ b/etc/SuperBuild/cmake/Modules/BuildOTIO.cmake
@@ -21,6 +21,6 @@ ExternalProject_Add(
     DEPENDS Imath
     GIT_REPOSITORY ${OTIO_GIT_REPOSITORY}
     GIT_TAG ${OTIO_GIT_TAG}
-    
+    GIT_SHALLOW 1
     LIST_SEPARATOR |
     CMAKE_ARGS ${OTIO_ARGS})
diff --git a/etc/SuperBuild/cmake/Modules/BuildOpenColorIO.cmake b/etc/SuperBuild/cmake/Modules/BuildOpenColorIO.cmake
index e5a74d3f..6ebc6197 100644
--- a/etc/SuperBuild/cmake/Modules/BuildOpenColorIO.cmake
+++ b/etc/SuperBuild/cmake/Modules/BuildOpenColorIO.cmake
@@ -28,6 +28,6 @@ ExternalProject_Add(
     DEPENDS Imath yaml-cpp expat pystring minizip-ng ZLIB
     GIT_REPOSITORY ${OpenColorIO_GIT_REPOSITORY}
     GIT_TAG ${OpenColorIO_GIT_TAG}
-    
+    GIT_SHALLOW 1
     LIST_SEPARATOR |
     CMAKE_ARGS ${OpenColorIO_ARGS})
diff --git a/etc/SuperBuild/cmake/Modules/BuildOpenEXR.cmake b/etc/SuperBuild/cmake/Modules/BuildOpenEXR.cmake
index 30b40926..fedc9fc1 100644
--- a/etc/SuperBuild/cmake/Modules/BuildOpenEXR.cmake
+++ b/etc/SuperBuild/cmake/Modules/BuildOpenEXR.cmake
@@ -20,6 +20,6 @@ ExternalProject_Add(
     DEPENDS Imath ZLIB
     GIT_REPOSITORY ${OpenEXR_GIT_REPOSITORY}
     GIT_TAG ${OpenEXR_GIT_TAG}
-    
+    GIT_SHALLOW 1
     LIST_SEPARATOR |
     CMAKE_ARGS ${OpenEXR_ARGS})
diff --git a/etc/SuperBuild/cmake/Modules/BuildPNG.cmake b/etc/SuperBuild/cmake/Modules/BuildPNG.cmake
index ccce7363..55de1dff 100644
--- a/etc/SuperBuild/cmake/Modules/BuildPNG.cmake
+++ b/etc/SuperBuild/cmake/Modules/BuildPNG.cmake
@@ -27,6 +27,6 @@ ExternalProject_Add(
     DEPENDS ZLIB
     GIT_REPOSITORY ${PNG_GIT_REPOSITORY}
     GIT_TAG ${PNG_GIT_TAG}
-    
+    GIT_SHALLOW 1
     LIST_SEPARATOR |
     CMAKE_ARGS ${PNG_ARGS})
diff --git a/etc/SuperBuild/cmake/Modules/BuildSampleRate.cmake b/etc/SuperBuild/cmake/Modules/BuildSampleRate.cmake
index 2e87bc9a..d85e33fa 100644
--- a/etc/SuperBuild/cmake/Modules/BuildSampleRate.cmake
+++ b/etc/SuperBuild/cmake/Modules/BuildSampleRate.cmake
@@ -13,6 +13,6 @@ ExternalProject_Add(
     PREFIX ${CMAKE_CURRENT_BINARY_DIR}/SampleRate
     GIT_REPOSITORY ${SampleRate_GIT_REPOSITORY}
     GIT_TAG ${SampleRate_GIT_TAG}
-    
+    GIT_SHALLOW 1
     LIST_SEPARATOR |
     CMAKE_ARGS ${SampleRate_ARGS})
diff --git a/etc/SuperBuild/cmake/Modules/BuildSvtAV1.cmake b/etc/SuperBuild/cmake/Modules/BuildSvtAV1.cmake
index 663deac0..1c95fa24 100644
--- a/etc/SuperBuild/cmake/Modules/BuildSvtAV1.cmake
+++ b/etc/SuperBuild/cmake/Modules/BuildSvtAV1.cmake
@@ -17,7 +17,7 @@ ExternalProject_Add(
     DEPENDS NASM
     GIT_REPOSITORY "https://gitlab.com/AOMediaCodec/SVT-AV1.git"
     GIT_TAG ${SvtAV1_TAG}
-    
+    GIT_SHALLOW 1
     LIST_SEPARATOR |
 	CMAKE_ARGS ${SvtAV1_ARGS}
     )
diff --git a/etc/SuperBuild/cmake/Modules/BuildTIFF.cmake b/etc/SuperBuild/cmake/Modules/BuildTIFF.cmake
index eefb62b1..88a9379e 100644
--- a/etc/SuperBuild/cmake/Modules/BuildTIFF.cmake
+++ b/etc/SuperBuild/cmake/Modules/BuildTIFF.cmake
@@ -26,6 +26,6 @@ ExternalProject_Add(
     DEPENDS ZLIB
     GIT_REPOSITORY ${TIFF_GIT_REPOSITORY}
     GIT_TAG ${TIFF_GIT_TAG}
-    
+    GIT_SHALLOW 1
     LIST_SEPARATOR |
     CMAKE_ARGS ${TIFF_ARGS})
diff --git a/etc/SuperBuild/cmake/Modules/BuildUSD.cmake b/etc/SuperBuild/cmake/Modules/BuildUSD.cmake
index 8d40b6ef..aa3a0320 100644
--- a/etc/SuperBuild/cmake/Modules/BuildUSD.cmake
+++ b/etc/SuperBuild/cmake/Modules/BuildUSD.cmake
@@ -54,7 +54,7 @@ ExternalProject_Add(
     DEPENDS ${USD_DEPS}
     GIT_REPOSITORY ${USD_GIT_REPOSITORY}
     GIT_TAG ${USD_GIT_TAG}
-    
+    GIT_SHALLOW 1
     CONFIGURE_COMMAND ""
     BUILD_COMMAND ${PYTHON_EXECUTABLE} build_scripts/build_usd.py ${CMAKE_INSTALL_PREFIX} ${USD_ARGS} 
     BUILD_IN_SOURCE 1
diff --git a/etc/SuperBuild/cmake/Modules/BuildVPX.cmake b/etc/SuperBuild/cmake/Modules/BuildVPX.cmake
index a5225353..bab55cc0 100755
--- a/etc/SuperBuild/cmake/Modules/BuildVPX.cmake
+++ b/etc/SuperBuild/cmake/Modules/BuildVPX.cmake
@@ -10,6 +10,9 @@ if(WIN32 OR NOT TLRENDER_FFMPEG)
      # Compiled with MSys scripts
 else()
 
+    include(ProcessorCount)
+    ProcessorCount(NPROCS)
+
     set(VPX_CFLAGS)
     set(VPX_CXXFLAGS)
     set(VPX_OBJCFLAGS)
@@ -52,9 +55,9 @@ else()
         DEPENDS ${TLRENDER_YASM_DEP} NASM
         GIT_REPOSITORY "https://github.com/webmproject/libvpx.git"
         GIT_TAG ${VPX_TAG}
-	
+	GIT_SHALLOW 1
 	CONFIGURE_COMMAND ${CMAKE_COMMAND} -E env PATH=${YASM_BIN_PATH} -- ./configure ${VPX_CONFIGURE_ARGS}
-	BUILD_COMMAND ${CMAKE_COMMAND} -E env PATH=${YASM_BIN_PATH} -- make
+	BUILD_COMMAND ${CMAKE_COMMAND} -E env PATH=${YASM_BIN_PATH} -- make -j ${NPROCS}
         BUILD_IN_SOURCE 1
     )
 
diff --git a/etc/SuperBuild/cmake/Modules/BuildX264.cmake b/etc/SuperBuild/cmake/Modules/BuildX264.cmake
index a47f282a..379b73c7 100644
--- a/etc/SuperBuild/cmake/Modules/BuildX264.cmake
+++ b/etc/SuperBuild/cmake/Modules/BuildX264.cmake
@@ -37,7 +37,7 @@ else()
         DEPENDS NASM
         GIT_REPOSITORY "https://code.videolan.org/videolan/x264.git"
         GIT_TAG ${X264_TAG}
-	
+	GIT_SHALLOW 1
         CONFIGURE_COMMAND ./configure ${X264_CONFIGURE_ARGS}
         BUILD_IN_SOURCE 1
     )
diff --git a/etc/SuperBuild/cmake/Modules/BuildZLIB.cmake b/etc/SuperBuild/cmake/Modules/BuildZLIB.cmake
index 50dc40bd..8ac0d1d1 100644
--- a/etc/SuperBuild/cmake/Modules/BuildZLIB.cmake
+++ b/etc/SuperBuild/cmake/Modules/BuildZLIB.cmake
@@ -13,7 +13,7 @@ ExternalProject_Add(
     PREFIX ${CMAKE_CURRENT_BINARY_DIR}/ZLIB
     GIT_REPOSITORY ${ZLIB_GIT_REPOSITORY}
     GIT_TAG ${ZLIB_GIT_TAG}
-    
+    GIT_SHALLOW 1
     PATCH_COMMAND ${CMAKE_COMMAND} -E copy_if_different
         ${CMAKE_CURRENT_SOURCE_DIR}/ZLIB-patch/CMakeLists.txt
         ${CMAKE_CURRENT_BINARY_DIR}/ZLIB/src/ZLIB/CMakeLists.txt
diff --git a/etc/SuperBuild/cmake/Modules/Builddav1d.cmake b/etc/SuperBuild/cmake/Modules/Builddav1d.cmake
index 541f2a38..6b49336a 100644
--- a/etc/SuperBuild/cmake/Modules/Builddav1d.cmake
+++ b/etc/SuperBuild/cmake/Modules/Builddav1d.cmake
@@ -19,7 +19,7 @@ ExternalProject_Add(
     DEPENDS NASM
     GIT_REPOSITORY "https://code.videolan.org/videolan/dav1d.git"
     GIT_TAG ${dav1d_GIT_TAG}
-    
+    GIT_SHALLOW 1
     CONFIGURE_COMMAND ${dav1d_CONFIGURE}
     BUILD_COMMAND ${dav1d_BUILD}
     INSTALL_COMMAND ${dav1d_INSTALL}
diff --git a/etc/SuperBuild/cmake/Modules/Buildexpat.cmake b/etc/SuperBuild/cmake/Modules/Buildexpat.cmake
index b2cc4c3e..e834d11a 100644
--- a/etc/SuperBuild/cmake/Modules/Buildexpat.cmake
+++ b/etc/SuperBuild/cmake/Modules/Buildexpat.cmake
@@ -14,7 +14,7 @@ ExternalProject_Add(
     PREFIX ${CMAKE_CURRENT_BINARY_DIR}/expat
     GIT_REPOSITORY ${expat_GIT_REPOSITORY}
     GIT_TAG ${expat_GIT_TAG}
-    
+    GIT_SHALLOW 1
     SOURCE_SUBDIR expat
     LIST_SEPARATOR |
     CMAKE_ARGS ${expat_ARGS})
diff --git a/etc/SuperBuild/cmake/Modules/Buildjasper.cmake b/etc/SuperBuild/cmake/Modules/Buildjasper.cmake
index 5deab72d..80c9fa70 100644
--- a/etc/SuperBuild/cmake/Modules/Buildjasper.cmake
+++ b/etc/SuperBuild/cmake/Modules/Buildjasper.cmake
@@ -24,7 +24,7 @@ ExternalProject_Add(
      PREFIX ${CMAKE_CURRENT_BINARY_DIR}/jasper
      GIT_REPOSITORY ${jasper_GIT_REPOSITORY}
      GIT_TAG ${jasper_GIT_TAG}
-     
+     GIT_SHALLOW 1
      DEPENDS ${jasper_DEPS}
      LIST_SEPARATOR |
      CMAKE_ARGS ${jasper_ARGS}
diff --git a/etc/SuperBuild/cmake/Modules/Buildlibjpeg-turbo.cmake b/etc/SuperBuild/cmake/Modules/Buildlibjpeg-turbo.cmake
index cf05f2c0..195374dd 100644
--- a/etc/SuperBuild/cmake/Modules/Buildlibjpeg-turbo.cmake
+++ b/etc/SuperBuild/cmake/Modules/Buildlibjpeg-turbo.cmake
@@ -30,6 +30,6 @@ ExternalProject_Add(
     DEPENDS ${libjpeg-turbo_DEPS}
     GIT_REPOSITORY ${libjpeg-turbo_GIT_REPOSITORY}
     GIT_TAG ${libjpeg-turbo_GIT_TAG}
-    
+    GIT_SHALLOW 1
     LIST_SEPARATOR |
     CMAKE_ARGS ${libjpeg-turbo_ARGS})
diff --git a/etc/SuperBuild/cmake/Modules/Buildminizip-ng.cmake b/etc/SuperBuild/cmake/Modules/Buildminizip-ng.cmake
index b5ffb6b2..d78483bf 100644
--- a/etc/SuperBuild/cmake/Modules/Buildminizip-ng.cmake
+++ b/etc/SuperBuild/cmake/Modules/Buildminizip-ng.cmake
@@ -23,6 +23,6 @@ ExternalProject_Add(
     DEPENDS ZLIB
     GIT_REPOSITORY ${minizip-ng_GIT_REPOSITORY}
     GIT_TAG ${minizip-ng_GIT_TAG}
-    
+    GIT_SHALLOW 1
     LIST_SEPARATOR |
     CMAKE_ARGS ${minizip-ng_ARGS})
diff --git a/etc/SuperBuild/cmake/Modules/Buildnlohmann_json.cmake b/etc/SuperBuild/cmake/Modules/Buildnlohmann_json.cmake
index 83537d43..6d4d55d1 100644
--- a/etc/SuperBuild/cmake/Modules/Buildnlohmann_json.cmake
+++ b/etc/SuperBuild/cmake/Modules/Buildnlohmann_json.cmake
@@ -11,7 +11,7 @@ ExternalProject_Add(
     PREFIX ${CMAKE_CURRENT_BINARY_DIR}/nlohmann_json
     GIT_REPOSITORY ${nlohmann_json_GIT_REPOSITORY}
     GIT_TAG ${nlohmann_json_GIT_TAG}
-    
+    GIT_SHALLOW 1
     LIST_SEPARATOR |
     CMAKE_ARGS ${nlohmann_json_ARGS}
 )
diff --git a/etc/SuperBuild/cmake/Modules/Buildpystring.cmake b/etc/SuperBuild/cmake/Modules/Buildpystring.cmake
index a119c541..6db10495 100644
--- a/etc/SuperBuild/cmake/Modules/Buildpystring.cmake
+++ b/etc/SuperBuild/cmake/Modules/Buildpystring.cmake
@@ -11,7 +11,7 @@ ExternalProject_Add(
     PREFIX ${CMAKE_CURRENT_BINARY_DIR}/pystring
     GIT_REPOSITORY ${pystring_GIT_REPOSITORY}
     GIT_TAG ${pystring_GIT_TAG}
-    
+    GIT_SHALLOW 1
     PATCH_COMMAND ${CMAKE_COMMAND} -E copy_if_different
         ${CMAKE_CURRENT_SOURCE_DIR}/pystring-patch/CMakeLists.txt
         ${CMAKE_CURRENT_BINARY_DIR}/pystring/src/pystring/CMakeLists.txt
diff --git a/etc/SuperBuild/cmake/Modules/Buildyaml-cpp.cmake b/etc/SuperBuild/cmake/Modules/Buildyaml-cpp.cmake
index 5545a8b6..cf7b180f 100644
--- a/etc/SuperBuild/cmake/Modules/Buildyaml-cpp.cmake
+++ b/etc/SuperBuild/cmake/Modules/Buildyaml-cpp.cmake
@@ -14,6 +14,6 @@ ExternalProject_Add(
     PREFIX ${CMAKE_CURRENT_BINARY_DIR}/yaml-cpp
     GIT_REPOSITORY ${yaml-cpp_GIT_REPOSITORY}
     GIT_TAG ${yaml-cpp_GIT_TAG}
-    
+    GIT_SHALLOW 1
     LIST_SEPARATOR |
     CMAKE_ARGS ${yaml-cpp_ARGS})