Recently I was troubleshooting terrible application Performance for a windows application.
This application is using files and directories located on a file server.
The file server OS was Windows server 2016 and the clients are Windows Server 2019 Citrix terminal servers.

The application uses seperate client folders containing files pr client, with alot of files inside the various folders – some more than others.
In this specific there were tens of thousands of files in some client folders.
Performance on the application was intermittently slow, and it could take upto 15 minutes to switch between one client and another inside the application Read on to get the solution