"inflation not being a topic" so the guy thinks that inflation at its present level is not appearing in any real equations, so it is not big, growing or shrinking, "off topic" not relevant.
and the USD to trade on the firm side" the guy is suggesting that generally the dollar exchange rate against a basket of currencies will rise
yes "would" improves it, but it is "jargonese" that is a special language designed to keep outsiders out