If you are hitting it on the screws, a driver should carry 2.4 yards per MPH. Did he comment anything about why you are carrying 20 yards short? Is it the A of A and spin? Or are you missing the sweet spot? Or both?
Whether or not you plan to change your A of A, you might benefit from learning about driver head shapes and how they affect the spin. "Low spin" is now a meaningless marketing buzz term, usually combined with "High launch". While high launch and low spin are the best combo, most driver designs are high spin, no matter what they say in the ads. The reason for this is that most golfers benefit from more backspin on their drives.
However, if you already have more than you need, you can try a lower spin head design.
Here is a low spin head:
Here is a high spin head:
The principles apply to any brand. A low spin head is tall and compact. A high spin head is low and stretched. You can look at the Taylor Made SuperTri and Super Deep. More and less spin, respectively. Titleist has the same distinction in their line. NORMALLY, the average swing speed golfer is directed to the stretched lower design, and the high swing speed better golfer to the more compact, tall design. Of course, tour pros are paid a lot of money to play clubs, and they can be seen playing the maximum game improvement styles. I'm guessing they overcome the spin tendencies with loft and shaft changes, and maybe internal weighting.
Also, almost no pro, despite their superior skill, plays a 46" driver, yet that is what is sold to the gullible public. But that's another story.
You will also find more spin with a softer shaft and less with a stiffer one, normally. Some people dispute this, but that is the common finding on monitors.
I think I too have a negative A of A. I play a 12* driver that actually measures 14*! If I play a true 10.5, it really flies low. A true 12-13 is about right for me, playing medium. My 12(14) flies just a bit high but not bad. However, it is an older 460 with a tall face, before they started stretching them. It does not spin a lot at all. At the Bridgestone ball fitting, my launch angle was ~15* and spin 2500 RPM. They liked the LA but said the spin should be more like 3000 for my 93 MPH speed. Well, my experience with many drivers is that this head and others of the same style are the longest for me. I have tried to beat this old driver out of my bag, but it has bested all comers. If it had a degree less loft it would be perfect, but I can't find anything so far. When I play with guys with similar swing speeds and iron distances, I'm hitting my driver past them, sometimes by a lot. So what I'm saying is, you might do better with a higher loft but lower spin head. Or not, that's what fitting and experimenting is all about.
What driver are you playing now? What shaft? How quick are your tempo and transition? How is your lag or release?