i mean it's nice to get a response as soon as possible but this seems completely unrealistic... it seems perfectly normal to expect a wait of a few days or weeks to me
If you run recruiting like it is important, making sure recruiters and hiring managers have the tools and time to talk to candidates quickly is really easy to do. A lot of companies run recruiting like it's a surprise when they have to hire or view it as less important than other functions... and then put lines like "our people are our greatest assets" on their careers page.
Why not treat your potential staff as more important than any of your customers?
Which is harder to acquire? Customers or Staff?
Customers. By far.