Version 2.0 extremely unresponsive

Hello there,

With the update to version 2.0 I can now see the folder structure in the media library popup when edititng a site. Sadly the popup hangs for about 4-5 seconds with each media selection, even though there are only 45 items in the media database. The normal Media library page (when not editing) works as expected and does not have the crazy loading times.

I should mention a few ore things:
* We’re using Semplice for editing pages
* Running on worrdpress 5.2.1
* Currently running on a local server using xampp

On a side note, the popup does not show any video files, while I can see them in the normal media library page (when not editing content).

I will send you an email to a screencast.

Cheers
Johannes