First of all I have to admit that what the DCSW is doing is without parallel in history .It looks like that ED is not only expert in aero dynamics but also expert in graphic processing.
However I think that recently DCSW is (maybe slightly) not on the right way when it comes to the quality and performance.
The graphics and effects are not the primary concern of a simulator ;they are the primary concern of games like ACE combat or HAWX. If we must recite what is very important(related to the monitor) to a flight simulator,it should be the continuity,or FPS.
In early 2013, the DCSW had a very good optimization, many PC can handle it. As the time passing , with many new models with large amount of polygons being added to DCSW, the game gradually became a hard ware killer.
The 3GO cube aerobatic team said once that they cannot train well with DCSW/FC3 because when they tighten the formation the fps will become very low .But in FC2, there is no such thing. I think it is caused by too much polygon computing,even they set textures,sences...to low. Since I do not have a tool to check the number of the polygens of one SU-27, I have to compare that with the gys F-15C mod.
The magnitude of the number of the polygens of the ED's new SU-27 model should be at about 100,000, if 5 SU-27 fly togeher, the wingman's PC will have to process at least 400,000 polygens at the sametime while the computer still have to deal with other dynamic equations( when you introduce the AFM/PFM model the situation will become worth).
However with my experience, a model with just 10,000 polygens is enough to be used as a high quality model for a flight simulation.
But what the ED is doing is trying to make one singel model more and more complex, turning an air combat simlation to a singel high quality aircraft 3D model panorama show.
With the CPU killer AFM/PFM and very complex 3d model ,now even a pretty good PC cannot maintain enough FPS when it runs a medium lever combat mission.
Even a good sever will crash when it runs a mission with 1000 vehicle with the 3D rendering already shut down.
The falcon BMS4 does not have many complex vehicle 3D model but it is still
very successful.
When your target is 10km away, even a 500-1000 polygen model will be enough.
So my conclusion is that the necessity of high polygon model for a sim isn't very urgent.
For example, the new MIG-21bis mod uses a lot of polygens to form the external cockpit details, it is meaningless.
And check the models in ACE combat 6 and you will find the new F-15C's model in DCSW has already crushed that in ACE combat 6,or 7
The graphics of the planes,tanks or ships should be concerned when everything else is done and with all respect I don't think that ED did well in hardware resource managing. A lot of senior LOFC/DCS fans have been driven to the BMS4. And among 3 major DCS/LOFC fans club in China, two of them start to hibernate, one start to split. It is related to the soft ware itself.