A lot may depend on your focusing settings and this can depend on what focuser you are using and what focus motor you have attached to it.

For me, I think I use the Polynomial algorithm, and my intial step size / max step size and max travel are limited to quite low values, but big enough to notice a difference in HFR (by the time I am in focus and ready to start the scheduler I should not need to move the focus very much to correct focus for changes in temperature, sky position etc....)

I guess if some of these values are too big then the focuser could move way out of focus and back in again, and that, of course, is going to affect guiding.

"Steps" are different for different focusers and set ups, so it might make sense to check with others who are using the same type of equipment as you.

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