Problems while working with big data sheet

I’m trying to work with a data sheet with 2600 rows but app is slow to insert and read from it or using it in a data picker.
many seconds to obtain one results.
can you verify?

Do you mean that generated React app is slow or the Studio is slow?

One should never load more than couple rows into data sheet in Studio to keep it fast. If you need more then load it dynamically from your API in the exported project code. If you dont have any API and you simply want to have 2600 items in Data sheet then the Studio will slow down because it tries to render huge list after every modification in the UI.

What is the use case for showing 2600 items in Picker?