1. Check with the application team from when it is running slow.
2. Check my pinging the server.
3. Check network latency (contacting with N/W admin).
4. Check improper responsiveness or OS related issue (Wintel team).
5. If nothing is found, we can ask app team, to verify whether the application is running from other machine or not.
6. Check for Blocking.
7. Kill the process with approval .