The ability to restrict the number of tasks that can be allocated to a day. My biggest flaw of using Clickup is that I have more tasks, than feasible to achieve. I spend more time managing my to-do list (rescheduling overdue), rather than getting it down.

For example:

Realistically I can only achieve X amount of tasks in a day.

It would be useful if any further tasks were restricted from being added to that day and highlighted/or bumped to the next available opportunity. Providing the opportunity to opt into more work, rather than be overwhelmed by it.