Apple and WS2012R2 extrelmly slow file listing

Hi all,

I have big problem with Apple and Windows server 2012R2. I migrated data from Synology to Windows Server and if i map drive : smb://fileserver/DATA_FOLDER, everything is OK, but if i open "disk" listing of folder is extremly slow 30 folders - 2-4 minutes loading. I try:
net.inet.tcp.delayed_ack=0
disable IPv6
net.inet.tcp.mssdflt=1440
net.inet.tcp.sendspace=250000
net.inet.tcp.recvspace=250000
install and test via PATH FINDER.

In windows i set:
Smb2CreditsMax                  : 8192
Smb2CreditsMin                  : 512

Nothing work :( 

Please, help! Thanks a lot.