Perfomance between VMSnapshot and StorageSnapshot

Dear Experts, we tested this concept: https://helpcenter.veeam.com/docs/backup/vsphere/vm_processing.html?ver=95 but did not see the difference in backup speed.

Test1: We backed up a Mail Exchange server (VM) with VM snapshot:

SnapshotVM.JPG
Test2: With Storage backup

options.JPG
but the result was not so different

SnapshotStorage.JPG
I believed Test2 should have quicker time (based on the article's suggestion)? Could you please explain and suggest? Many thanks as always!

Environment: Vsphere 6.5, Veeam B&R 9.5 update3, Win Standard 2012, MS Exchange 2016
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TjnoNetwork AdministratorAsked:
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
what are you wanting to test ?

time to get the data from the SAN to Veeam Repo ?
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TjnoNetwork AdministratorAuthor Commented:
Hi Andrew, I'd like to test the time it takes to complete the backup job.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
SAN Snapshots are instant or very quick but is Veeam backing up the snapshot
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TjnoNetwork AdministratorAuthor Commented:
So If I understand you correctly, we need to increase Veeam server's resource, such as RAM, CPUs?
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Target is the bottleneck, so yes.
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TjnoNetwork AdministratorAuthor Commented:
but the target is a NAS device, not Veeam backup server?
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
so target needs checking
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TjnoNetwork AdministratorAuthor Commented:
Hi, after increased the concurrent tasks in Backup repository (NAS device) from 4 to 10, the backup speed was increased. Many thanks!
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TjnoNetwork AdministratorAuthor Commented:
Reconfigure Veeam software:
- Increase concurrent tasks option of Veeam proxy and Backup repository
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