In PR - https://github.com/openshift/console/pull/13676 we worked on improving the performance of the PipelineRun list page and the issue https://issues.redhat.com/browse/OCPBUGS-32631 is created to still improve the performance of the PLR list page. Once this is complete, we have to improve the performance of Pipeline list page by considering below point,

1. TaskRuns should not be fetched for all the PLR's. 
2. Use pipelinerun.status.conditions.message  to get the status of TaskRuns 3. For any PLR, if string pipelinerun.status.conditions.message having data about Tasks status use that string only instead of fetching TaskRuns