Cannot add visualization to dashboard

hi ,
when trying to add a visualization to a dashboard I 'm getting a blank popup.
in the devtools of chrome, I can see that the requests to fetch the saved objects takes 5-7 seconds , and returned an array of ~ 1300 saved objects (attached)
questions:

  1. Is there any way to make it faster?
  2. is the count of 1300 saved objects too much?
  3. why isn't it loading the list after it returned from server?
  4. I have added 2gb (total 4gb), and it didnt help. - is that enough for kibana?

thanks a lot
Lior

opened an issue:

Hello,

Trying to verify this issue in my cloud. Thanks for raising it. Will keep you posted.

Bhavya