I don't know much about the Freelancer-Software and it' using of resources, but i know a litte bit about modern Windows-System and serverhardware (or virtual maschines).
The big question is, can Discouvery Freelancer use more than one processor-core?
If yes, there is just one problem for more server-power: the monthly costs. If you pay it, yu can get more than hundred cores and terrabyte of RAM with an I/O-Speed on the drive, that we all are dreaming of.
If not, the thing is getting interesting. I know no Virtual-Server-hoster and nearly no physical Server-hoster, who post the exact processor-type so you can see the maximum speed from one core of the system.
And even when the processors do have much more combinated power on all cores, the Speed when all pwer just requests one core didn't Groth really in the last 10-15 years.
The first 4-Ghz-Prozessors was there when? 2005? 2008?
And today there are just a few processors, that have more than 4Ghz per Core. And all of them are not used by Virtual-Server-hoster, becouse most of them have only 4 cores.
The most processors used by Virtual-Server-hoster have between 2-3Ghz, becouse they are cheaper per core, so you can sell more cores...
So yes, the single core in most virtual Servers you can get today have less power than 10 years ago. And remember the operating system are using the same ore more power for them self.
So if you want a maximum power on a single core you have to build your own server. But that brings costs for administration, backup, firewall, hardwarefaltures and so on.
And we don't talk About it won't be easy to migrate the Server from one to an other hardware (includes VM-"hardware" to real hardware)...