diff --git a/src/libs/vlayout/vlayout.pro b/src/libs/vlayout/vlayout.pro
index 80467fefc..5380d9df3 100644
--- a/src/libs/vlayout/vlayout.pro
+++ b/src/libs/vlayout/vlayout.pro
@@ -104,6 +104,9 @@ CONFIG(debug, debug|release){
         QMAKE_CXXFLAGS += -fno-omit-frame-pointer # Need for exchndl.dll
     }
 
+    QMAKE_CXXFLAGS -= -O2 # Disable default optimization level
+    QMAKE_CXXFLAGS += -O3 # For vlayout library enable speed optimizations
+
     noDebugSymbols{ # For enable run qmake with CONFIG+=noDebugSymbols
         # do nothing
     } else {