Does a balance of payment (or trade) surplus equate higher growth? Not necessarily, Australia which has had deficits for over forty years has grown faster than Germany which has had over forty years of surpluses. Does a current account surplus (i.e. exports greater than imports) mean a nation is doing better than other nations with current account deficits? The answer is no, what really matters is why the deficits exist.
U.S. trade with the world has grown despite tariffs and tariffs rhetoric in the first half (January to June) of 2018. There is one point of view that trade grew to avoid tariffs before they were implemented which might be partially true. Here are the key takeaways and the dataset,