To try to put a final slant on this topic. On all types that I've flown (and that is quite a few), it is very difficult to demonstrate convincingly a perceptible lag between cyclic input and fuselage attitude change, although the rate of attitude change obviously does vary due to inertia differences. The possible exceptions were the Hiller 12b/c where moving the cyclic operated the paddles which then changed the disc attitude and the Bell 47's where the cyclic input goes through the stabiliser bar and induces a tiny delay (the .47 sec). If you can see half a second delay, good luck!
Inertia then affects the rate at which the change of speed occurs viz R22 at one end and MIL 26 at the other.