How do you troubleshoot Application Slow performance issue in IIS?

• First we will login into one of the server and check inside by browsing locally
• If that is working well, then it could be someone to do with network end
• If the application is slow in server also, then we will check the CPU & memory of the server
• We will check if there is enough disk space in the server
• We will check Event logs to find if any dependency or SQL is causing this slowness
• Also we will check the IIS logs to see the response time.
• We also use Dynatrace to find out the root cause of the issue