Did you watch the GTA Long Night developer video, where some of the features of the new version were demonstrated, which they never completed? Well, one of these features has already been implemented - zombies began to move much more slowly. Now the main rule of the game, which was to constantly press the run button, has partially lost its meaning. Also changed the gait of the military and some survivors so that they do not limp like zombies.
ATTENTION! This modification greatly simplifies the passage of the game, as, in other matters, the entire gameplay, so the choice between difficulty and a slow walk is up to you.