Not too far out of line considering your specs. Are you using AEC? I wouldn't bother unless the movie is quite long, then I'd go AEC/Max Smooth. As for Deep Analysis, well, it's kinda like doing an extra pass with an encoder, trouble is, DVDShrink is a transcoder. The idea is to let Shrink have a first look to find where it can compress most efficiently while losing minimal quality. Helps a little, no doubt.
With times like that, why not try DVDRebuilder, start it when you go to bed. I can do a 2 hr. movie in about 3 hrs. with my comp (2.6 GHz). That's with CCE, 2-pass. QuEnc (free) would take at least 4 hrs., not sure, haven't fooled with it lately.
DVDShrink is a great program, I still use it to reauthor movies, no compression, before feeding it to DVDRebuilder. I don't use it anymore to compress. It does a damn fine job, and at modest compression it's a good choice. (Since I'm not backing up movies at the rate some of you do, I don't mind letting DVDRebuilder run overnight). I do question the utility of using DA when the elapsed time approaches the time DVDRebuilder needs.