The question is - how realistic is what I am trying to do ?

I am trying to crossfade jpegs, at the minute 1500 x 1000 pixels. The snag has been getting xfade fed a smooth stream of numbers so that the crossfades are smooth and flawless. About 90% of the time they are but then, whatever method of generating the numbers for xfade that I use - cpuclock or line, the rest of the time the numbers choke and there is a hiccup in the crossfade.

I imagine this is due to processing power v image size. Ideally I want the image no smaller than my screen, 1440 wide. My processor is a 2.5 GHZ core 2 duo.

Is this unrealistic ? If so might I succeed with a faster machine. Like a 3.2 GHz intel core i3 processor, or a mac pro 2.8 GHz quad core ? What would realistic expectations be to achieve a 100% of the time flawless xfade ?

Thanks,

Jem