diff --git a/CMakeLists.txt b/CMakeLists.txt
index d076c5e28..751c5e778 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -108,6 +108,7 @@ if ("${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU|Clang|AppleClang")
             -Wno-narrowing \
             -Wno-missing-braces \
             -ffast-math \
+            -flto=auto \
             -pipe"
     )
 
diff --git a/doxygen-awesome-css b/doxygen-awesome-css
index 28ed396de..9760c3001 160000
--- a/doxygen-awesome-css
+++ b/doxygen-awesome-css
@@ -1 +1 @@
-Subproject commit 28ed396de19cd3d803bcb483dceefdb6d03b1b2b
+Subproject commit 9760c30014131f4eacb8e96f15f3869c7bc5dd8c