Sketchup Pro 2016, slow open and save on one profil

Hi everyone,

We use Sketchup on one computer since two years with 2 windows profil (the second profil was created 2 months ago)

The problem is: Sketchup is slow to open and save file on the windows profil who was created 2 monts ago.

When the user is log with the older profil, he told me that he has no problem to open and save file (the file are on a file server Windows 2012 R2 x64)

I have export and import the plugin.

I have updated the video and chipset driver too.

Do I need to export/import some others configuration on the older profil??