Installing Heap's autocapture tracking script on your website allows for comprehensive data collection of user behavior without compromising site performance. The script collects all behavioral data automatically and retroactively, providing insights into customer interactions such as clicks, swipes, and pageviews without the need for manual event tagging or engineering intervention. Heap's script is designed to load asynchronously, ensuring that it does not impact initial page load times or cause re-renders, similar to Google Analytics but at a smaller size. Hosted on Amazon AWS Cloudfront, it ensures fast load times and minimal network request impact, making it an efficient tool for data analysis without site slowdown. Customers have reported no performance issues when using Heap, which offers a quick setup by inserting a single line of code into the site header, allowing teams to speed up data-driven decision-making processes.