diff --git a/Userland/Libraries/LibGfx/Filters/FastBoxBlurFilter.cpp b/Userland/Libraries/LibGfx/Filters/FastBoxBlurFilter.cpp
index 66f18136ff..cf5f94833d 100644
--- a/Userland/Libraries/LibGfx/Filters/FastBoxBlurFilter.cpp
+++ b/Userland/Libraries/LibGfx/Filters/FastBoxBlurFilter.cpp
@@ -4,6 +4,10 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#if defined(__GNUC__) && !defined(__clang__)
+#    pragma GCC optimize("O3")
+#endif
+
 #include <AK/Function.h>
 #include <AK/Vector.h>
 #include <LibGfx/Filters/FastBoxBlurFilter.h>