Editing Question

I really like the a/c that Kazunori Ito is putting out. What does one edit, however, to get a more realistic take off and cruising profile? For instance, the Victor will cruise about 100 MPH faster than in real life, the F-89D will keep accelerating in a 6,000 FPM climb, etc. Also, in the Constellation and the XB-35, the engine sound is constant and not a function of throttle movement. Are these kinds of things "editable?"Thanks in advance for any suggestions.-- Marc BurchamPS, Please do not interpret these questions as any kind of criticism of Mr. Ito's efforts. I love vintage a/c, and have most of his older birds in my hangar. I would say to him, "KEEP 'EM COMING!"