Sadly Copperajah is not the only slow boy. Coalossal is also 30 speed. Appletun is 30 speed. Grapploct is 42 speed. Hatterene is 29 speed. Cursola is 30 speed. Runerigus is 30 speed. Pinurchin is 15 speed.
But there are also a good many fast Pokemon and alot of medium speed Pokemon. 2 of the starters, Bolthund, Dragapult, Eiscue (with broken head), and Barraskewda are all fast, over 100 speed. Plenty more with speed over 70.
I do have a few complaints with the stats. I wish the 2 new bugs, Centiskorch and Frosmoth, were faster, only 65 speed, and Frosmoth needed higher stats in general, I don't like that it's BST is that much lower than Centiskorch. Would also have liked Toxitricity to be a bit faster, 75 speed is ok but not great. Was hoping for a higher BST for Cramorant and Corviknight, both are under 500 BST. Eldegoss is also a bit underwhelming at 460 BST.