Bigger wheels lets you skate at a different tempo than smaller ones.
Generally, you'll see very few pure street skaters with anything bigger than 54-56 because ollies and such get sluggish at that point but for tranny you can get higher and faster with way less effort.
To keep speed on bowls with small wheels you need to pump the shit out of them. When I ride 58s or above it takes so much less effort but you may also feel like you have less "twitch" reaction ability.
I typically ride 53/54 mm on just about everything (I don't skate vert) and 54s if they are hard enough, work fine or street and bowls. I can out-speed most people at my local park with 52s/swiss six but I get winded fast.
Depending on what you do on street, you can get away with 54/55s I don't flip in or out (maybe a pop shuv in/out or impossibles, maybe a heel out) but flipping in to me, requires smaller wheels, flipping out you have a bit more time for setup.