- Plesk 12.5 for Windows
File manager and Virtual Directory pages for all sites in Plesk open very slowly in Windows:
utility checks files' types too long, about 10-13 seconds.
The server is VMWARE VM with approximately:
- CPU utilization: 99%
- Memory: 91%
- Disk: about 70 - 99%
A lack of resources on your server: the physical disk utilization is too large.
Update the hardware on a server or move some of the sites to another server in order to improve server performance.