ok, thats odd...
so my 2006 MBP C2D 2.33 Ghz/3GB ram, running 10.7.5 , works fine with Axoloti...
(I used 1.0.9, but its not changed since the beginning... the iMac i tested above, has a really old version of axoloti on it)
if it weren't for the fact, I have better machines, its display is a bit dodgy, the keyboard is falling apart, and the the hard disk is about to fail - id be perfect happy using it
for reference, this is how I tested:
open up a few axoloti patches, bigger ones like tybett ... added objects, connected wires, drag a few objects around, selected many objects dragged... select the entire patch dragged. all was fine, certainly no delays of a second, or any real delay I could detect.
I did this with both the axoloti connected and unconnected, and actually it didn't make any real difference.
(I didn't look at the cpu, as it was working fine, Im sure it was higher cpu, but... not so it was a problem)
as I pointed out though, this machine is a pretty clean install of OSX, with just axoloti and I think chrome and firefox installed, probably not much more. I also run the tests without anything else running. (I think fair given this machine is retired and on a pension)
so im not sure what to suggest really, this machine is 10 years old, 3 years old than yours, pretty much same processor, and a bit less memory... and given the age, Id assume the GPU is worst than yours as well.
(sorry, I can't say anything about windows performance, as I only run win10 on VMWare on my newer mac, so that performs well, but doesn't say much)
GPU on an ARM board, not tried with my PI2 , that apparently now has a GPU.... Id also wonder on the PI if memory starts becoming a potential issue... I will one day fire it up on my Pi2 for a laugh.
(but for proper usages, as Ive stated elsewhere, Im going to add a command line Axoloti, to start/compile patches )