Command line hangs after file transfer

Hi,

I am new to TrueNas and was wondering why I have a long delay after the file has been reported to be transferred to NAS (refer to below terminal snippet below:
rsync --progress Downloads/livegui-amd64-20240526T163557Z.iso ./nas2/
livegui-amd64-20240526T163557Z.iso
3,513,456,640 100% 409.57MB/s 0:00:08 (xfr#1, to-chk=0/1)

after 100 percent is shown in the terminal rsync hangs for about 2 minutes.

My setup
wireless rsync file from a laptop over wireless AC speeds
TrueNas box is connected to a switch in a 4x1G lagg no Jumbo Frames
Ryzen 7 1700x
64GB Ram
TrueNas latest version
I have 2 sata based SSDs as a slog
I have 1 SATA based SSD as
I have 4x4TB @5900 rpm sata3 HDD 2 mirrored vdevs
The All drives are attached via an HBA nonraid passed to truenas

Any clarification would be greatly appreciated and please let me know if further clarification is needed.

Thanks!