Slow in Save

Hi guys

I've just migrated from PB 11.1 to PB 12.6 last EBF but even if my pbls are stored locally I spend 20 second for every Save; with PB 11.1 saving was very fast

If I open my workspace from a remote disk PB 12.6 is slower

I tested PB 12.6 in Windows 10 and Windows 7, PB 11.1 was installed on a W2003 Server

someone has an hint?

thanks a lot