First interactive > Fully loaded

Hello everyone,
I tested a site many times and I see that the first interactive is greater than the fully loaded time.
How is that possible?

Thank you so much

Here is a good technical explanation as to why this is happening.

Ideally we’d want the page interactive when the page is visible, but due to long running tasks the page cannot be interacted with since the UI thread is locked. Ideally these metrics should be in synch with one another but as you have seen it is not always the case, resulting in a bad user experience.

Hi chelvan,
thank you for your reply and your help. It totally makes sense!