What's a good Mobile Performance Score?
Karbon Agency's target for Mobile Performance Score is 75 or higher. That is Karbon's own grading target, not a published industry average. For reference, the Lighthouse 'good' band (90 to 100): 90. Google Lighthouse mobile performance score (0-100). Excellent is 90 or higher (Lighthouse's 'good' band starts at 90), and the minimum acceptable tier is 50 or higher (Lighthouse's 'needs improvement' band starts at 50; below it is 'poor').
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The three tiers Karbon grades against — and where each comes from
| Tier | Value | What it means | Basis |
|---|---|---|---|
| Minimum | 50 | The floor. Below this, something is broken. | Lighthouse's 'needs improvement' band starts at 50; below it is 'poor' |
| Recommended | 75 | The tier a healthy campaign should hit. | Karbon target |
| Excellent | 90 | Top-tier performance worth defending. | Lighthouse's 'good' band starts at 90 |
| Published threshold | 90 | Lighthouse 'good' band (90 to 100). Source (2019-09) | |
Higher is better for this metric.
Why Mobile Performance Score matters
Most local-business ad traffic on Meta arrives on a phone. A poor mobile score means paid clicks land on a slow, frustrating page.
Sources
The three tiers on this page are Karbon Agency's grading targets. These published figures are the outside reference points for Mobile Performance Score, so you can check our tiers against them.
- Chrome for Developers — Lighthouse performance scoring (September 19, 2019; read September 26, 2026)Performance scores of 0–49 are poor, 50–89 need improvement, and 90–100 are good.
Where does your Mobile Performance Score land?
Karbon Agency grades every client campaign against these exact tiers, live on a dashboard — no guessing, no quarterly PDFs.