Testing Vimalin - something is wrong

[ion_sc]

Good Morning,

First of all, excuse me for my English.

A few days ago I found a reference to Vimalim on the vmware website.
I started to read a little about the operation of the program and I really liked it, since I thought it was a simple but powerful program.

So I installed it on the host where I have my VM hosted.
The first tests worked in a correct way, but for a few days it has not worked too well.
It takes a long time to do the backups (the last 398 minutes) and I don't know why.

My host has the following characteristics:
Mac Pro (early 2009)
Processor: 2x3.46 GHz 6-Core Intel Xeon
Memory: 128GB 1333MHz DDR3

Only macOS Mojave is installed on the main HDD.
A Solid HDD is mounted in bay 2, where only the virtual machine is.
A 1TB mechanical HDD is mounted in bay 3, only to carry out backups.

MY VM is configured with:
6 processor cores.
16384 MB of memory.

For some reason the time it takes to make the backup is exorbitant and I would like to know if it can work faster before buying the paid version.

Thank you.