This is a clone of issue OCPBUGS-23480. The following is the description of the original issue:
—
Description of problem:

PipelineRun list view contains Task status column, which shows the overall task status of the pipelinerurn. Inorder to render this column we fetch all the tasksruns of that pipelinerun.  Every pipelinerun row will have to have all the related TaskRuns information, which is causing performance issue in the pipelinerun list view.

Customer is facing issue of UI slowness and rendering problem for large number of pipelineruns with and without results enabled. In both cases, there is significant slowness being observed which is hampering their daily operations.

How reproducible:

Always

Steps to Reproduce:

1. Create few pipelineruns
2. Navigate to pipelineruns list view

Actual results:

All the Taskruns are being fetched and the pipelinerun list view renders this column  asynchronously with loading indicator.

Expected results:

Taskruns should not be fetched at all, rather UI need to parse the `` string to render this column.

Additional info:

Pipelinerun status message gets updated on every task completion.

pipelinerun.status.conditions:

• lastTransitionTime: '2023-11-15T07:51:42Z'
  message: 'Tasks Completed: 3 (Failed: 0, Cancelled 0), Skipped: 0'
  reason: Succeeded
  status: 'True'
  type: Succeeded

we can parse the above information to derive the following object and use this for rendering the column,  this will increase the performance of this page hugely. 

{
 completed: 3, // 3 (total count) - 0 (failed count) - 0 (cancelled count),
 failed: 0,
 cancelled: 0,
 skipped: 0,
 pending: 0 
}

Slack thread for more details - thread