We've just updated the Zoom branch with some more fixes! Should be pretty stable now. Let us know!
Also, we've added in a new option (default on) 'Tiered Zombie Updates' which should ease the load of large hordes (particularly ones far away or not in LOS) on CPU. We're hoping both these together will help people in FPS in high stress situations. Tiered zombie update will severely cut down on a lot of zombie CPU usage, and therefore usually maintain a higher FPS and thus more player control, at the expense of smoothness of zombies at a distance.
Also a fix to strafing during combat that should stop people being rooted to the spot when swinging from stationary. Before you could only strafe during a swing if you were already strafing at the moment you click. Now you can start strafing during the swing which should help with combat mobility a lot. Also animation cancelling should be heavily nerfed.
To access the zoom branch, right click PZ in your Steam library, go to "Properties", navigate to the "Betas" tab, and enter the Steam beta password: fbosbegone2019.
Then select the zoom branch from the dropdown menu and let Steam do it's updatey thing.