Hi,
Since migrating to the "new jira experience", page rendering has been extremely slowly. First we assumed it was a network issue related to Atlassian servers being located at the US west coast, but since the Cloud servers turned out to be located in Germany this should not be a problem.
After some debugging it seems like the issue is the JavaScript scripting and rendering on the client side for the new jira experience. This takes significantly longer time than for the old jira cloud and jira server.
Attached is a picture showing a profiling of opening a project and open an issue. This whole process took 13 seconds where Scripting accounted for almost 7 seconds. Have anyone else noticed this dramatic reduction in performance, and is the Atlassian Cloud team aware of this issue?

Regards,
Kristian Reed