73% of local traffic is mobile. 53% of mobile users abandon sites taking over 3 seconds. The math is brutal — but the fix is simpler than most think.
The math nobody does
Imagine 1,000 visitors/month from Google. 730 are mobile. If your site takes 5 seconds to load (common on unoptimized WordPress), 387 of those 730 leave before seeing your content.
Of the 343 remaining, ~12% convert = 41 leads. If your site loaded in 2 seconds, you'd retain ~620 visitors and get ~74 leads. 33 extra leads/month — from speed alone.
Why Miami SB sites are typically slow
- WordPress with 22 plugins: each adds JS/CSS to the frontend.
- Unoptimized images: 4MB iPhone photos uploaded uncompressed.
- Slider-style carousels: usually 200KB of JS for functionality replaceable with pure CSS.
- Fully-loaded fonts: Inter Bold + Black + Light = 600KB when you only need 200KB.
- No client caching: every visit re-downloads everything.
The 5 highest-ROI fixes
1. Compress images (impact: 30–60%)
Use TinyPNG or Squoosh. Convert JPGs to WebP. Result: images 70% smaller, visually indistinguishable.
2. Lazy-load below-the-fold images (impact: 15–25%)
One line: <img loading="lazy">. Only loads images when user scrolls to them. WordPress does this automatically from 5.5, but verify.
3. Kill plugins (impact: 20–40%)
If you have 20+ plugins, probably 7–10 are unnecessary or replaceable. Each costs speed. This is the 30-minute audit that pays best.
4. CDN for assets (impact: 10–20%)
Free Cloudflare serves your CSS, JS, and images from the closest datacenter to the visitor. Setup: 30 minutes. Maintenance: zero.
5. Browser cache (impact: 15–30% on return visits)
Appropriate Cache-Control headers. A return visit doesn't re-download what it already has. Configurable in .htaccess in 5 minutes.
How to measure
Just two tools:
- PageSpeed Insights (free, Google): gives 0–100 score + prioritized fix list.
- WebPageTest (free): shows exactly what loads, in what order, how long.
When to rebuild vs optimize
If your PageSpeed score is <40 after optimizing the obvious, it's usually cheaper and better to rebuild on a faster base (Astro, Next.js, or even WP with a minimal theme like GeneratePress). If 40–70, optimize. If >70, maintain and focus on other levers.
Want us to calculate your score and give you specific fixes? Free website grade →