Pfsense / opnsense on virtualbox will performance drop a lot?

Question

virtual box

There are no extra pieces of iron, you have to get out.
I want to put opnsense on virtualbox under win2003
from the tasks of balancing two hundred-megabit connections to providers and cutting the speed of
the gigabit network, that is, at the peak, the load can reach 200 megabits
percent on the i5 650 host is rarely loaded above 20%

Answer 1

Kroilovo leads to popadalovo

Answer 2

Why do you need a VB gasket? But I'd rather buy something like mikrotik hex and put it separately.