why does the multi- thread application run abnormal

[lion]

I build an xpe image on via epia 5000 board(cpu :533 ,ram :128m),and add a
registry item on
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run to enalbe
system run our application as soon as it starts.our application is a
multi-thread application,the thread only draw some line and curve on DC
continually, it run well on xp professional,but the application stumble on
xpe(sometimes it draw them fastly , sometimes it draw them slowly,but the
code try to make it draw them constantly and stably ),anybody know why?
thanks!

 

[KM]

lion,

Maybe at the boot time (when the Run key processed) system is pretty busy
launching other apps (and services), getting DHCP address and etc., so that
your app threads do not get good ("enough") quotes to draw the primitives?

How does the app run if you launch it manually on the same image from, say,
Explorer?

KM