Variable doesn't change for every user

[Dawid2]

We want to update data in QlikView after pressing button. We also have 2 variables :

and Enable Conditional of button:

=if(text(actual_time) < text(time(latest_refresh+(2/1440))), 0, 1)

We want button to be blocked for 2 minutes after pressing it and it works but only for one user. When 2 users use the same Cockpit in QlikView Access Point and one of them presses the button then it's blocked only for the first user but the second one have an enabled button. 

[Or]

Variables values are set per user, not per app, so one user clicking a variable will not impact another unless/until the app finishes reloading and the updated version is pushed through to the user(s) in question.

[Dawid2]

Is there any possibility to make changes visible for every user even before app will finish?

[Or]

I am not aware of any functionality of that nature. Seeing as this isn't really something QlikView is meant for, I've never explored this particular situation, but perhaps others will have ideas.