well ROF had optimisation problems too but not to this extent + the graphic was much better from the start (land, aa etc), and they needed a year to polish the sim....thats way I lost faith in CLOD....pitty because FM, DM and cockpits are nice in CLOD, years of development....however original IL2 with upcoming ultrapack mods will be even better and will continue the legend....
my copy of CLOD is on sale now....cheap