Congratulations on your new Lucey! Lots of fun ahead
As far as your stitch regulator is concerned, one thing to check is what is your stitch length dial set at for number of stitches per inch. If it is set too low (below 10), that will make the SR run very sluggishly. I run mine somewhere between 10 - 12, depending on what design and finished look I am going for. Another thing to look at is if you are getting good contact with the little black wheel of both of the SR's. If the contact isn't quite enough, the wheel won't turn fast enough. Look at your manual for your machine to see what I'm trying to explain. If neither of these suggestions are what is causing your issue, then definitely give Dawn a call.
Good luck and welcome to the APQS family!