NIS+NFS ALL users home mounted

OS 13.2 server with nis+nfs server
Client with nis+nfs and automounter.
Whe sddm show login, the system mounts the home dir of ALL the users at the server.
It seems to be an issue of sddm but I’m not so sure
The system became very, very slow.

any help?

regards

Does disabling avatars help?

I’m using maldivas, it uses no avatars