Lazy page loading via Redis in Django project

Question

There is a download page for about 5000 sql queries against a database (Postrgres). The team decided to apply the following algorithm to avoid 502 errors when multiple users load the page at the same time (using Redis):

1. Create a task for an additional worker
2. Connect via WebSocket to the page. (or use an AJAX request)
3. While the request is running, the user sees the download window.
4. When the worker completes the calculation, it will pass the result to the consumers

The project uses django_rq. Are there ready-made solutions that perform this algorithm? Like a decorator?

Also, if you have suggestions for optimizing such a number of requests, please suggest them.

Used standard Django optimization tools to reduce the number of requests.