IF your bike comes with 32mm tires, most likely you can go down to 25mm without issue.

I built a set of "road" wheels for my hybrid. Rear is 135mm "hybrid" spacing.
32 spoke Sun Rims M13 II's, cheap Shimano hubs, 15/16 DB spokes front & rear NDS and 14/15 DB rear DS.
It did make me "faster", but in a different way.
I tend to poke along where my speed varies quite a bit besides the numerous red lights etc.
The lighter wheels make it much easier to accelerate back up to speed, saving energy.
They made the difference between me doing a 50 mile day vs a 70 mile day. (I'm an old guy with bad knees and emphysema, so wherever I can save "effort", it has a cumulative effect.

Down side-
I had to adjust (and ADD) spacers to the brake pads. Pretty much to the point that I barely have enough threads for the nut.
Else the pads will contact the rim at too severe of an angle and want to slide off under severe braking.