What are the best DVD ripping settings to avoid a choppy QT performance?

I ripped some of my DVDs with Handbreak, and I put them on my PB 12" running 10.4.5 and Quicktime 7.0.4. The performance is really bad with H264 code, and acceptable with standard mpeg4 codec (I occasionally get some stuttering). Which of the following parameters (beside the codec) can improve the QT performance on slower computers?
1) The size of the final QT file (will a 1GB QT file stutter more, compared to a 600MB file?)
2) The 1-pass or 2-pass option (so far I've been using only the 2-pass option)
3) The bitrate (will a 1000kbps get less chances to stutter than a 2000kbps)?
Thanks!
Powerbook g4 12   Mac OS X (10.4.3)  

If you're using any "ripping" software to convert DVD's to QuickTime formats you are at the mercy of the encoding (and the software that creates it).
If your Mac has trouble with the file your only options are to reduce the data rate or the movie dimensions.
I've done a few tests (using H.264) that yield satisfactory results on my Mac mini.
I edit the display dimensions (prior to export) to half size (640X480 becomes 320X240) and use the H.264 video codec (my Mac Mini can handle it) and then use QT Pro to display the file at double size (back to 640X480).
Quality does suffer but playback works even on my old G3 iMac.

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