Hi
I'm using the C172 to train for my flights irl, and I'm also noting that same issue. In a turn, when I turn the yoke, there is almost no need for rudder input, because the ball moves very little from the center, unless i turn the yoke a lot, and very fast.
Also, another thing I noticed in the C172, is that when I lower the flaps, there is not much pitch up reaction from the airplane, compared to real life.