Let's narrow down the key points and make a decision.

Literal

Key-points [object-を] narrow-down-[and-て], decision [object-を] hand-down-let's.

要点を絞る ('narrow down the key points') is a business collocation: 絞る ('to squeeze / narrow') used metaphorically. 決定を下す ('render / hand down a decision') — 下す is used for issuing authoritative decisions, verdicts, orders. Both are core business vocabulary.