That's a fairly fast pan so that is definitely part of it but I don't have an immediate answer for why it seems smoother at 24 than 25 except that perhaps the 1 frame difference in timing is enough to make it more noticeable. Solutions to similar problems in the past have included:
1. Turn off image stabilization on your lens if you have it engaged.
2. Try using Synchro Scan to lower your shutter speed slightly. Some people have expressed positive results as low as 1/43.
If I think of any other solutions, I'll post them.
Maybe it's just me but the only time I'm seeing stuttering is in some of the fast pans on the 25p footage which is to be expected given the 7 second rule. Is there another spot where folks are seeing stutter?
Actually, I think the correct procedure is to watch a number of films that came out BEFORE Kane and then watch Kane again. The degree to which Welles wrote much of our modern film language within a single film is what makes it so legendary. Add in his use of some tricks he picked up in radio (using an echo to suggest that a room is enormous when you can't afford to actually shoot in a giant room for instance) and you can really see what a monumental shift Kane caused once you see it within context. I think the problem for most people is that they hear all this stuff about Kane, then watch it and can't understand why people make such a big deal about it.
I have been playing with Resolve as my primary editing app for a while now, using it for smaller projects with flexible timetables (just in case I needed to drop it and pop back over to Premiere in order to meet a deadline). For me, the only thing holding me back was the speed. I've been waiting for the release of 12 with interest in the hopes that they were able to make thinks less sluggish (I'm on a high end machine but shuttling is still laggy as are many processes). I think the interface is excellent and having everything under one roof is highly desirable for me. I'm anxious to download the beta and see if they've managed speed improvements. If so, I'm in.