(to investigate)

• Some people are finding dashboard/pipeline screens slow when logged in vs not logged in (see appropriate comments below) 
  • See comments and support bundles below for this - eg via bksaville. In some cases it is related to number of runs. 
• Some users see activity screen as very slow when there are a large number of runs (this seems to be the more common and serious case...)

• • The best example of this is https://ci.jenkins.io/blue/organizations/jenkins/Core%2Fjenkins/activity - note how long it takes to load (compared to other pipelines there). You also see this if you open from a PR and then dismiss the result screen (as it goes back to activity) - batmat reported this. Large number of branches+runs (other pipelines with less runs load faster)
     

— ORIGINAL TICKET —

I've noticed that the dashboard loads quickly when I'm not authenticated.

(classic loads normally)

Deleting the config history like suggested in https://issues.jenkins-ci.org/browse/JENKINS-43208 did not work.

I have sent an HAR file via email to jamesdumay.

Jenkins version 2.46.3, BlueOcean 1.1.2