UI 2.0.0-M4 | Strange behaviours

We're currently in DEV with the version 2.0.0-M4 and discoverd some strange UI-behaviours (you may noticed it as well )

First of all, the new UI is much more intuitive (e.g. navigation back to process groups in settings/parameters etc) and thank you for this

Strange behaviours:

1. Blank page after a while tab being in background:
   If the browser tab is background for a while (maybe 20 minutes), we somethimes get a blank page with the notice, that the webpage is using much resources... After a reload, its working again
   --> In M3 this behaviour could not be observed
2. Slow rendering of parameters while fetching with FileParameterProvider:
   In the modal-dialog of the fetch process, the parameters get slowly rendered. After hovering/clicking/keyboard interactions, the text gets rendered...

Thanks a lot for your work!