normal speed us so right apart from the way u said vfr is more realistic?
VFR and IFR are like no more realistic than the other. coz u iether do VFR or IFR
On Flight Simulator 2002, IFR is much more realistic that VFR, meaning the way that you operate in the system (talking to controllers, etc.) is much more representative of reality when flying under IFR than under VFR--and I say this as someone who holds a real-life instrument rating.
I've found the IFR system (clearances, controllers, approaches) on FS 2002 to be a fairly accurate representation of the real thing, although somewhat simplified. If you are going for realism on FS 2002, IFR is the only method that is even remotely close.