Here is a few numbers for some of my bows, I am pleased with all of them.
60" bamboo backed osage orange "D" (has taken some set) bow made in 2005 60#@ 27" 500 grain average cedar hunting arrow. 167 fps
63" osage orange static recurve bow made in 2012 39# @ 28" same arrow 148 fps
63.5" osage orange semi-flat "D" shaped bow made in 1991 54# @ 27" 156 fps
Nothing over the ordinary about these speeds but very satisfactory to me.
I agree by knowing how your bows shoot can help you make a better bow, but it is not overly important to me.