# How do tracking apps (Facebook Pixel, TikTok Pixel, Google Tag Manager) impact Shopify speed? (Technical Case 7) | Expert Answer & Guide

> Each tracking app loads external third-party scripts that trigger multiple HTTP handshakes, blocking the browser renderer and delaying the Largest Con... Read the detailed technical breakdown and recommendations.

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How do tracking apps (Facebook Pixel, TikTok Pixel, Google Tag Manager) impact Shopify speed? (Technical Case 7) | Expert Answer & Guide

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How do tracking apps (Facebook Pixel, TikTok Pixel, Google Tag Manager) impact Shopify speed? (Technical Case 7)

Each tracking app loads external third-party scripts that trigger multiple HTTP handshakes, blocking the browser renderer and delaying the Largest Contentful Paint (LCP) by 1.5 to 3 seconds.

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In-Depth Engineering Explanation

We resolve tracking pixel lag by consolidating tags through a single server-side or asynchronously loaded Google Tag Manager container, ensuring tracking fires cleanly without delaying the visual rendering of your product storefront.

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