It's hard to give you any specific advice without some specific #'s from the launch monitor.  Can you provide the actual launch angle, spin and azimuth?  Can you also provide the loft of the driver?

Off the top of my head, I have a very similar swing speed and I use the Blue Diamana stiff shaft.  So a regular shaft may be contributing to the spin and launch.

Also, a setting of D3 (assuming you are right handed) INCREASES loft.  You may want to try D2 (or A3 if you're a leftie).

Assuming you don't have too much loft in the head, I'm pretty sure you can purchase just a new shaft from a Titleist Dealer.  If you need to reduce loft to get the launch and spin down, you will need to purchase a new driver.

Way too high??? don't know the specifics of your swing, you may want to try the stock Diamana D+ shaft, 62 stiff or 72 stiff. The store should have a demo with your head and the diamana D+ 72 shaft to test. It will surely lower both launch & spin numbers compared to the blue shaft your currently using. I think the Diamana website has this stiff flex fitting at 92 - 105 mph swing speed. If the shaft works then have them order just the shaft only for you from Titleist.