diff --git a/Userland/Libraries/LibVideo/VP9/Decoder.cpp b/Userland/Libraries/LibVideo/VP9/Decoder.cpp
index 5a22587d8f..8a75293bfe 100644
--- a/Userland/Libraries/LibVideo/VP9/Decoder.cpp
+++ b/Userland/Libraries/LibVideo/VP9/Decoder.cpp
@@ -12,6 +12,10 @@
 #include "Decoder.h"
 #include "Utilities.h"
 
+#if defined(AK_COMPILER_GCC)
+#    pragma GCC optimize("O3")
+#endif
+
 namespace Video::VP9 {
 
 Decoder::Decoder()
diff --git a/Userland/Libraries/LibVideo/VP9/Parser.cpp b/Userland/Libraries/LibVideo/VP9/Parser.cpp
index c0d894edf8..9aa1b972e1 100644
--- a/Userland/Libraries/LibVideo/VP9/Parser.cpp
+++ b/Userland/Libraries/LibVideo/VP9/Parser.cpp
@@ -13,6 +13,10 @@
 #include "Parser.h"
 #include "Utilities.h"
 
+#if defined(AK_COMPILER_GCC)
+#    pragma GCC optimize("O3")
+#endif
+
 namespace Video::VP9 {
 
 #define TRY_READ(expression) DECODER_TRY(DecoderErrorCategory::Corrupted, expression)