Limiter not working - Virtualbox

[ColinM9991]

I set up pfSense in Virtual Box earlier tonight and went straight in to the limiter to allow users to only have a certain amount of bandwidth per IP address.
After setting the In's and Out's in Limiter I then went to the "Rules" in Firewall and set a new LAN rule, first testing on my own IP address whilst applying the In & Out Limits.

When running speed tests and downloading, my speeds are not limited what-so-ever.
Does this function not work on Virtual Machines or are there any steps I need to follow?