Laptop Looping

[midifriedchicken@comcast.net]

So I've been getting to know Bidule and Sooperlooper. Both killer apps. 
The idea of having many chains of beautiful effects with total control of 
loops and sounds is certianly seductive. I understand fully the devotion 
many of you have towards this way off looping. 
However, I'm still getting stutters, dropouts and clicks. This I assume is 
because the cpu is maxing out. I am using a Powerbook 1.5 Mhz with 1 Gig 
of Ram. Now, I know this is by todays standards a weaker machine. But it 
should be more then enough to handle the meager requirements of my 
software. Even with no effects in the chain (or even on the patchbay), the 
problems still occur, less frequently, but unnaceptable for live use. 
I put on the mac activity viewer and monitored the cpu. The monitor showed 
moderate memory use as I play, with an occaisonal spike in system 
requirements. This is when I hear clicks or stutters. I assume this is 
just normal processes that happen normally in the background. Nothing I 
can do about this, right?
Am I missing something?
Any thoughts on smoothing things out? 

MFC