Hiding tasks instead of archiving them in their dedicated zone slows down the tool

I tested this approach of hiding completed tasks, similar to what most tools on the market do

However, I quickly realized that it doesn’t solve the problem of interface clutter.
By simply hiding them, these tasks remain present in the background.

As soon as you click on "show archives," the interface gets overloaded due to this pseudo-archiving system.
The result? The tool slows down progressively, and the frontend keeps trying to load data that was never actually moved to a dedicated archive zone.

This is why I created a minimalist Kanban board, stripped of unnecessary features, which truly archives completed tasks by moving them out of the main workflow.

I am currently building NuxiPro in public, sharing my journey and insights in case they can be helpful.

Have you ever encountered this slowdown issue in your daily use of productivity tools?