Early-stage B2B SEO: how long do impressions typically precede clicks?

I’m trying to sanity-check expectations for early-stage B2B SEO, especially in higher-trust / regulated niches.

General scenario (no links, no site specifics):

• Newish site (few months old)
• Pages are indexed and being re-crawled
• Search Console shows impressions increasing
• Queries are mostly long-tail and informational
• CTR remains near zero so far

I’m deliberately avoiding premature optimisation (constant title changes, aggressive internal linking, etc.), but I’m unsure where the line is between “this is normal” and “you should intervene now.”

Questions for experienced SEOs:

• Is an impressions-first phase common before Google assigns click trust?
• In B2B niches with higher decision friction, does CTR lag more than average?
• What signals matter most before touching titles/meta again?
• Do you wait for query stability, or act as soon as impressions appear?

Not asking for audits, tools, or DMs – just trying to understand expected behaviour patterns before making changes.