(Tom has already been having a look at this area, so may as well track it in a ticket).

Cold load speed is quite painful right now.

The pages worth examining:

With a warm cache:

• https://ci.blueocean.io/blue/organizations/jenkins/blueocean/activity/
• https://ci.blueocean.io/blue/organizations/jenkins/blueocean/detail/master/401/pipeline/

With a cold cache:

• https://ci.blueocean.io/blue/organizations/jenkins/blueocean/detail/master/401/pipeline/
• https://ci.blueocean.io/blue/

Latter is what needs improvements if possible.