5 Shopify Performance Mistakes That Are Killing Your Conversion Rate

Bilal Burney — Tue, 23 Jun 2026 12:19:57 +0000

Most Shopify stores lose 30-50% of potential sales not because of bad products or poor marketing — but because of fixable technical issues that slow the store down or break trust at the last moment.

Here are 5 mistakes I see constantly when auditing Shopify stores:

1. Unoptimized Images Above the Fold

The single biggest LCP killer. A 2MB hero image adds 3-5 seconds to load time on mobile. Fix: convert to WebP, compress to under 200KB, and use Shopify's img_url filter with width parameter.

2. Too Many Shopify Apps

Every app you install injects JS into your storefront. 15 apps = 15 extra script loads. Audit your apps quarterly. If you're not actively using it, uninstall it. Use native Shopify features where possible.

3. No Liquid-Level Caching

Rendering the same data (metafields, metaobjects, product recommendations) on every page request wastes server time. Cache aggressively using {% cache %} blocks and section rendering.

4. Checkout Trust Gap

Customers abandon checkout when they don't see trust signals at the moment they're entering card details. Add security badges, visible return policy, and a support contact link directly in the checkout header.

5. Not Using Shopify Markets for International Traffic

If you're getting traffic from multiple countries but not using Markets, you're showing prices in the wrong currency and missing localization opportunities. Markets setup takes 30 minutes and can increase international conversion by 20-40%.

If you're a brand struggling with any of these, I help Shopify stores fix performance and conversion issues. You can see my work at bilalburney.com.