Slow FreeBSD installation under ESXI. Why?

Question

FreeBSD

Esxi 5.5. Loaded from a flash drive.
Server G7 ml110.
A regular sata 3.5" 7200 250GB disk.

With default settings (1GB, 2 cores), I run the FreeBSD installation, as a result, copying no more than 40 files / sec.
And this despite the fact that from the same flash drive, with the same settings, only on Celeron, though with another hdd, but also sata 7200 at least 300 files / sec.
It's been almost an hour to install a frya. It
doesn't matter where (virtual sd, remote folder), it still doesn't rise more than 100 files / sec.

I understand that the problem is in the esxi settings. But where?

Answer 1

paravirtual controller will be faster...
In general, do you have a thread running on your hypervisor? It looks like just the disk system slows down

Answer 2

change provisioning + controller (if installed tools are not needed for it)

Answer 3

And on the Performance tab, did you try to look at what the performance of this virtual machine rests on?