Opening DX OI Service Analytics, DX APM Experience View or Map View takes almost a minute
How to improve the performance?
DX Operational Intelligence 20.x
DX Application Performance Management 20.x
From Cluster Management > Services it was found TAS capacity issue as the culprit. Topology Size (%) is an important metric that confirmed this condition, TAS size was the default from installation.
1) Login to to DX Platform as masteradmin
2) In Cluster Management, go to Services, locate the TAS service, click on the ellipse icon, select "Configure Deployment"
3) Change Deployment type to Large, click "Redeploy"
DX AIOPs Troubleshooting, Common Issues and Best Practices