Short answer: faster pages convert better and are easier for Google to reward. You do not need to obsess over scores—you need a site that feels fast on a normal phone on mobile data.
Speed is both a user experience issue and a competitive issue. Customers abandon slow checkout flows; Google uses page experience signals among many ranking factors. For NZ businesses, the biggest wins usually come from image discipline, reducing render-blocking scripts, better hosting, and avoiding oversized “everything-in-one” page builders.
What are Core Web Vitals in plain English?
- LCP (Largest Contentful Paint): how quickly the main content becomes visible.
- INP (Interaction to Next Paint): how responsive the page feels when users tap or click.
- CLS (Cumulative Layout Shift): how much the layout jumps around while loading.
Think of them as “loads fast, feels responsive, does not jiggle”.
What are the usual culprits on small business sites?
- Massive unoptimised images and hero banners.
- Too many third-party widgets (chat, trackers, heatmaps, ads).
- Heavy themes and excessive plugins.
- Slow server response time on cheap hosting.
What fixes give the best ROI first?
- Resize and compress images; use modern formats where possible.
- Remove widgets you do not actively use.
- Enable caching appropriately (without breaking checkout).
- Upgrade hosting if time-to-first-byte is consistently poor.
How do you measure honestly?
Use a combination of Lighthouse (lab tests) and real-user monitoring where available. Test on a mid-range phone. A desktop-only score is misleading for most NZ local traffic.
Where can you get help implementing fixes?
If your site needs performance hardening alongside design work, NZDH can assist—especially when speed problems are structural, not just “one plugin toggle”.
Frequently asked questions
Do I need a perfect100 score?
No. Aim for “fast enough” for users and stable metrics, not trophy scores.
Will AMP fix everything?
Not necessarily. AMP is a strategy, not a substitute for good assets and templates.
Why did speed get worse after a redesign?
New visuals often add weight. Redesigns should include a performance budget and testing.