I'm definitely excited for the future of performance improvements with regards to dedicated servers, the switch to vulcan and the eventual utilization of more CPU cores.
Right now I'm running a fairly robust system with a 2080 Ti card overclocked by about 172mhz, a Ryzen 7 1800x overclocked to 4ghz on all 8 cores, 32gb of 2400mhz memory. GPU & CPU are water cooled by a hefty dual 480mm x 60mm radiator setup. Game is run off a Sandisk X400 M.2 SSD.
On some servers like the Acrobatics server flying in a Huey is pure butter with great frame rates in VR. When I go to other servers like Through The Inferno that have a lot more assets running and players connected DCS performance starts to slide backwards. At times things can get so choppy around busy airports for whatever reason it starts to remind me of the old Flight Sim 95 and 98 days.
Knowing that other than a memory upgrade and overclock I'm throwing more than a reasonable amount of hardware horse power at DCS and still seeing lack luster performance lets me know there is a LOT of performance they can unlock with work to the code. How difficult or time consuming that task isn't my concern but I'll be patiently, eagerly and excitingly awaiting core engine performance improvement.