Why does 1c slow down on a virtual machine in hetzner?

Question

virtual box

Maybe someone came across.
We took a fresh i7-4770 32Gb ram server with Win 2012 host, installed VirtualBox with guest win 2008r2 and ms sql 2008, software from virtualbox for guest machines, raised 1c enterprise and platform 8.2, filled in the working base. As a result, we got absolutely disgusting performance, which is on the file (according to the gilev test 10 points), and on sql (4.5 points). Converted the image under VmWare - the result is one to one.
In complete confusion, I downloaded the image of this guest machine to a local PC (i7-2600, 16Gb ram) and launched it in exactly the same release of VirtualBox - everything flies. Gilev 40+ points.
- Put 1c enterprise and a platform without a virtual machine - on the hetzner host server - everything flies.
- Measuring the performance of hdd in the guest system shows better results than the performance in the guest on the local machine (i7-2600)
Question: where to dig?

Answer 1

Dig into disk virtualization. Try to install 1C in a virtual machine, but save the SQL files to a local disk (via mapping a physical partition or a file share. In the latter case, it will be a little overhead, but for testing and finding a bottleneck - ok)

Answer 2

And, hetzner himself does not use virtualization? A virtual machine in a virtual machine can give such an effect with performance.
Here they write:

What type of virtualization is used?
We use KVM-based virtualization. We use fully virtualized dedicated servers

Answer 3

hetzner is simply not suitable for such projects. pin, network configs are made through the anal passage there.

Answer 4

In the Power consumption section, is the mode set to Maximum performance?