We’re all getting used to insta-load but around half of us will leave a site if it takes more than ~3 seconds to load about half of the people give up and the majority won’t come back [1]. It’s that dramatic, and I’ve seen myself doing it - or well, I just fallback to Google cache/web archive.

[1] https://www.hostingmanual.net/3-seconds-how-website-speed-im...