I'm not quite sure what your argument is here...
It may feel like that on your 'hand dyno', but .45 typically uses a slower burning powder compared to .40 and will give you more of a 'push' feeling, rather than a 'snap.' In a subcompact, its probably a bit harder to distinguish which is worse between the .45 and .40, but in general, .40 is known to to be a bit unpleasant. The difference between 9mm and .40 is obviously felt, which is what I originally stated, and what this thread is about.