Calling get_users without any limits

https://developer.www.ads-software.com/reference/functions/get_users/

In the plugin, there is a get_users call at the start.
Then there are two more get_users call in there.

All of these calls will crash the page every single time if run on a site that has low php resource compared to user count.

I’m not sure why the user select field is a drop down where whole db’s users are loaded in one go. It should use a user search option like WP’s own user page.
Or if simpler, just enter two user ID.