Redmine

I have ~90 users. In production mode when i press "add watcher", select-tag appears after 20 sec loading.

Problem with file: vendor/plugins/acts_as_watchable/lib/acts_as_watchable.rb:

def addable_watcher_users
  users = self.project.users.sort - self.watcher_users
  if respond_to?(:visible?)
    users.reject! {|user| !visible?(user)}
  end
  users
end

Recursive visibility check make mass sql-queries, so i just cut it off.

Here my logs before and after and patch.