“Actually, any torpedo tube launched missile (for example the Klubs) are fairly sedate at starup.”
Not that slow and they don’t fly that high, either.
Actually, that depends. For example, a path that takes the missile high in the start to get the orientation right and then brings it down for the final leg with ground matching is common. The physical configuration also varies - the Klub is different from the Tomahawk is different from the Scalp. I think someone else covered why the initial speed isn't all that great, so I'll just assume you can read.
Of course, to know any of this stuff I probably ought to be a Dr. Divinity or a Bishop (or at least a Pastor) or something.