I have mine set at 92. It’s not perfect, but close enough to give me a reasonable idea of the program time.
You also need to adjust your rapid feed setting so it properly matches your machine’s capabilities. This is more important for roughing operations than anything else but if you’re doing a long adaptive rough, you will notice a difference there. Though it’s still imperfect because these machines have a slower Z rapid than XY. I have mine set at 300 (XY rapid for 1100mx) and again, the overall simulation estimate is fairly close.