UiPath form activity

Hi All,
Has anyone used UiPath form activity in which we can create a form and use it.

Can we do everything we need with the UiPath forms?

What can only be done with HTML/browser? And how do we code it?

And what are the performance considerations?

If there are potentially 5000 transactions in the system, can the user page through them while still keeping the interface responsive?

Please support.