After configured server signing, file transfer speed is very slow

[VigneshDhanraj G]

Hi Team,

After configured server signing as mandatory in smb.conf, file transfer
speed has slow down.
Almost 90% speed has reducing. Kindly do the needful.

Please find the below configuration:
[Global]
available= yes
restrict anonymous= 0
server string= Test
Workgroup= GNANA
netbios name= Test
realm= GNANA.COM <http://VIGNESH.COM>
password server= 192.168.1.14, *
idmap backend= tdb
idmap uid= 5000-9999999
idmap gid= 5000-9999999
idmap config GNANA : backend= rid
idmap config GNANA : range= 10000000-19999999
security= ADS
name resolve order= wins host bcast lmhosts
client use spnego= yes
dns proxy= no
winbind use default domain= no
winbind nested groups= yes
inherit acls= yes
winbind enum users= yes
winbind enum groups= yes
winbind separator= \\
winbind cache time= 300
winbind offline logon= true
template shell= /bin/sh
kerberos method= secrets and keytab
map to guest= Bad User
host msdfs= yes
strict allocate= no
encrypt passwords= yes
passdb backend= smbpasswd
printcap name= lpstat
printable= no
load printers= yes
ntlm auth= Yes
server signing= mandatory

Thanks,
Vignesh.