A local restaurant had their menu redone in React! Not just React, but React done badly. Click on "Lunch Menu", say, and literally nothing changes for 30 second

A local restaurant had their menu redone in React! Not just React, but React done badly. Click on "Lunch Menu", say, and literally nothing changes for 30 seconds. Then the new page appears. I took a while to realise it wasn't completely broken. God knows how much they paid for it. It's awful. Edit: I should add, this reactivity serves no purpose. It's a sit down restaurant. You can't order electronically.