diff --git a/CMakeLists.txt b/CMakeLists.txt
index dd7fdc4..2a4b400 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.6.3)
+﻿cmake_minimum_required(VERSION 3.6.3)
 
 set(CMAKE_CXX_STANDARD 14)
 
@@ -344,6 +344,9 @@
     add_definitions(-D_SBCS)  # Single Byte Character Set (ASCII)
     add_definitions(-D_ENABLE_EXTENDED_ALIGNED_STORAGE)  # Disable MSVC warnings about std::aligned_storage being broken before VS 2017 15.8
 
+    set_cpp_flag("/DEBUG:FASTLINK" DEBUG)
+    set_cpp_flag("/DEBUG:FASTLINK" RELWITHDEBINFO)
+
     if(SWIFTSHADER_WARNINGS_AS_ERRORS)
         set_cpp_flag("/WX") # Treat all warnings as errors
     endif()
@@ -374,7 +377,6 @@
         "/we4838" # conversion from 'type_1' to 'type_2' requires a narrowing conversion
         "/we5038" # data member 'member1' will be initialized after data member 'member2' data member 'member' will be initialized after base class 'base_class'
     )
-
 else()
     set_cpp_flag("-fno-exceptions")
 
diff --git a/tests/kokoro/gcp_ubuntu/continuous.sh b/tests/kokoro/gcp_ubuntu/continuous.sh
index 0d879ec..4877ba0 100755
--- a/tests/kokoro/gcp_ubuntu/continuous.sh
+++ b/tests/kokoro/gcp_ubuntu/continuous.sh
@@ -20,7 +20,10 @@
   REACTOR_BACKEND="LLVM"
 fi
 
-cmake .. "-DCMAKE_BUILD_TYPE=${BUILD_TYPE}" "-DREACTOR_BACKEND=${REACTOR_BACKEND}" "-DREACTOR_VERIFY_LLVM_IR=1"
+# Lower the amount of debug info, to reduce Kokoro build times.
+LESS_DEBUG_INFO=1
+
+cmake .. "-DCMAKE_BUILD_TYPE=${BUILD_TYPE}" "-DREACTOR_BACKEND=${REACTOR_BACKEND}" "-DREACTOR_VERIFY_LLVM_IR=1" "-DLESS_DEBUG_INFO=${LESS_DEBUG_INFO}"
 make --jobs=$(nproc)
 
 # Run unit tests
diff --git a/tests/kokoro/gcp_windows/continuous.bat b/tests/kokoro/gcp_windows/continuous.bat
index 401cec1..5219ee2 100644
--- a/tests/kokoro/gcp_windows/continuous.bat
+++ b/tests/kokoro/gcp_windows/continuous.bat
@@ -11,13 +11,16 @@
 git submodule update --init
 if !ERRORLEVEL! neq 0 exit /b !ERRORLEVEL!
 
+# Lower the amount of debug info, to reduce Kokoro build times.
+SET LESS_DEBUG_INFO=1
+
 SET MSBUILD="C:\Program Files (x86)\Microsoft Visual Studio\2017\BuildTools\MSBuild\15.0\Bin\MSBuild"
 SET CONFIG=Debug
 
 cd %SRC%\build
 if !ERRORLEVEL! neq 0 exit /b !ERRORLEVEL!
 
-cmake .. -G "Visual Studio 15 2017 Win64" -Thost=x64 "-DCMAKE_BUILD_TYPE=%BUILD_TYPE%" "-DREACTOR_BACKEND=%REACTOR_BACKEND%" "-DREACTOR_VERIFY_LLVM_IR=1"
+cmake .. -G "Visual Studio 15 2017 Win64" -Thost=x64 "-DCMAKE_BUILD_TYPE=%BUILD_TYPE%" "-DREACTOR_BACKEND=%REACTOR_BACKEND%" "-DREACTOR_VERIFY_LLVM_IR=1" "-DLESS_DEBUG_INFO=%LESS_DEBUG_INFO%"
 if !ERRORLEVEL! neq 0 exit /b !ERRORLEVEL!
 
 %MSBUILD% /p:Configuration=%CONFIG% SwiftShader.sln
diff --git a/tests/kokoro/macos/continuous.sh b/tests/kokoro/macos/continuous.sh
index 3b6a664..07c68d2 100755
--- a/tests/kokoro/macos/continuous.sh
+++ b/tests/kokoro/macos/continuous.sh
@@ -15,14 +15,17 @@
   REACTOR_BACKEND="LLVM"
 fi
 
-# Disable ASAN checks for debug builds to work around Kokoro timeouts that
-# affect llvm-debug builds. See b/147355576 for more information.
+# Lower the amount of debug info, to reduce Kokoro build times.
+LESS_DEBUG_INFO=1
+
+# Disable ASAN checks for debug builds, to reduce Kokoro build times.
+# ASAN builds are recommended to be optimized.
 ASAN="ON"
 if [[ "${BUILD_TYPE}" == "Debug" ]]; then
   ASAN="OFF"
 fi
 
-cmake .. "-DSWIFTSHADER_ASAN=${ASAN}" "-DCMAKE_BUILD_TYPE=${BUILD_TYPE}" "-DREACTOR_BACKEND=${REACTOR_BACKEND}" "-DREACTOR_VERIFY_LLVM_IR=1"
+cmake .. "-DSWIFTSHADER_ASAN=${ASAN}" "-DCMAKE_BUILD_TYPE=${BUILD_TYPE}" "-DREACTOR_BACKEND=${REACTOR_BACKEND}" "-DREACTOR_VERIFY_LLVM_IR=1" "-DLESS_DEBUG_INFO=${LESS_DEBUG_INFO}"
 make -j$(sysctl -n hw.logicalcpu)
 
 # Run unit tests
diff --git a/tests/presubmit.sh b/tests/presubmit.sh
index 4ba0d16..d0b4f6a 100755
--- a/tests/presubmit.sh
+++ b/tests/presubmit.sh
@@ -44,10 +44,10 @@
 
   if [ $? -ne 0 ]
   then
-    echo "Git commit message must have a Bug: line"
+    echo "${red}Git commit message must have a Bug: line"
     echo "followed by a bug ID in the form b/# for Buganizer bugs or"
     echo "project:# for Monorail bugs (e.g. 'Bug: chromium:123')."
-    echo "Omit any digits when no ID is required (e.g. 'Bug: fix build')."
+    echo "Omit any digits when no ID is required (e.g. 'Bug: fix build').${normal}"
     return 1
   fi
 }
@@ -61,9 +61,10 @@
   done | grep -v "(standard input)" > ${tmpfile}
   if test -s ${tmpfile}; then
     # tempfile is NOT empty
-    echo "Copyright issue in these files:"
+    echo "${red}Copyright issue in these files:"
     cat ${tmpfile}
     rm ${tmpfile}
+    echo "${normal}"
     return 1
   else
     rm ${tmpfile}
@@ -95,4 +96,4 @@
 check gofmt run_gofmt
 
 echo
-echo "${green}All check completed successfully.$normal"
+echo "${green}All check completed successfully.${normal}"