Questions for veteran simmers

I have several add-on aircraft in which the visual is not in sync with the sound. EXAMPLE: When starting engines on Kazunori Ito's P-61B, the props go from cranking to spinning, while the sound is still in the crank-up phase. The sound package I am using is "B-26 Sounds" by Lawdog2360.I have scrutinized the sound.cfg but cannot figure out how to shorten the crank-up sequence (or alternatively, how to lengthen the prop cranking).Bottom line: I want the props to go from cranking to spinning when the engine "catches". Can anyone help? Thanks.