Squarespace Features That Hurt Load Time More Than You Realize

Some of Squarespace’s most visually appealing built-in features carry significant performance costs.

Knowing the tradeoffs lets you make smarter decisions about which effects are worth the overhead.

This area is where Squarespace speed best practices often diverge from default behavior.

Video backgrounds and autoplay media

Autoplay background video ranks among the most expensive Squarespace features from a performance standpoint.

A background video can add several megabytes to a page load and is especially damaging on mobile.

The practical fix:

Replace the video with a high-quality, properly compressed static hero image. The visual impact is nearly as strong, and the performance cost is a fraction.

If video is important to your brand story, use a click-to-play embedded video instead of autoplay.

Large galleries and slideshow blocks

Gallery pages slow down when they load too many images at once without lazy loading or pagination.

The typical culprit is a gallery that started with 10 images and grew to 40 or 50 as the owner added content gradually over months.

Keep gallery image counts lower, compress every image before uploading, and use grid-style layouts over heavy slideshow formats where your design allows.

Big, uncompressed gallery pages are one of the most common causes of slow website performance revealed by site audits.

Heavy templates, parallax, and animation effects

Templates with dense layouts, parallax scroll effects, and entrance animations increase DOM complexity and the amount of JavaScript the browser must process before the page becomes usable.