Interesting... I'm not sure if that's "normal" but I always (*) felt (subjectively) that VC++ creates faster code, or maybe it's caused by the different run-time libs. That's one of the reasons why I stay with it for the official builds, the others are that the Qt Project is still recommending it and that support is only really guaranteed for VC++. However, building with MinGW is a lot easier since it's basically the same as on Linux / UNIX / Mac OS X then smile.

(*): "always" means "within the past decade" here... I recall a simple test case in 1992 when MSVC was compiling significantly slower code than the Watcom compiler I preferred to use on Windows at the time smile.

A mind is like a parachute. It doesn't work unless it's open. [Frank Zappa]