What Breathless had going for it was the fact it was one of the first, if not the first game of it's class to use C2P rather than chunky display emulation. In the long run, that gave it a significant advantage on faster machines.
So did it work better on a CD32 than an A1200?
Did Akiko work faster if you had an accelerator in the CD32? (ie would Breathless work better on a CD32/040 than an A1200/040?)