Re: Software is not magic!!
WINE runs ONLY the software binaries of your application.
XP, and Windows in general, have a ton of non user application crap running in the background, shading on the mouse pointer, animated pull down menus, etc., that slow the OS down.
If you have a clean no frills base install of Linux (I use Debian) then WINE and your application get more CPU time and runs faster than it would otherwise..
Don't believe me? Go into "system settings" on ANY Windows system, find the "Performance" options and turn everything OFF. You will be amazed at how much faster your system has suddenly become, and if you turn off all the "helper apps" like the quicklaunchers it gets even better.
I once ran a boot time comparison once between my Athlon x2, 2.0Ghz, 2GB RAM laptop running 64bit Debian and my boss's Athlon x4, 3.5Ghz, 8GB RAM desktop running 64bit Win XP Pro,.
my laptop: power on the desktop, including login, 55 seconds.
Boss's system: power on to desktop, including login, 2 minutes 45 seconds.
When I first set up my Boss's system I booted it to a Debian based Linux live CD (Knoppix) for a hardware test. It was so freaking fast I couldn't believe it was the same system when I rebooted to Windows.
Just goes to show what the hardware can do if it is not wasting time getting the bells and whistles running.