XS708T Connection is very slow, especially with LAG enabled

Bob thanks for such a fast and helpful reply.  And thank you for the clarity that 10 GbE LAG won't achieve 20 Gb/sec to client.  I may end up just going without a LAG connection in that case, since it seems to be a bit faster overall.  I'm leaning toward eventually getting a NAS but at the moment my hope is to just be able to mount drives across a network over SMB and achieve a rightful 10GbE speed (or as fast as the drive speed can achieve if that is slower).

I suppose in this case I'll hold on to the XS708T unless you think I would do better with the QNAP for a more reliable 10GbE connection overall?