I've noticed the accuracy to be negligible between the full size and compact CZ75s I've shot.
CZ75B SA factory test target shows a ~ 2" group
CZ75 Compact factory test target shows a ~2" group
The difference in group size is a few millimeters. Practical accuracy seems to be comparable as well.
On the other hand, factory test targets for a SP-01 and P09 are similar and ~ 4".