Why is my online store running slow and how can I improve it?

Topic summary

A Shopify store owner (trendyxmart.com) is experiencing slow site performance and seeking optimization advice. Multiple contributors identified several key issues:

Primary Performance Problems:

  • Excessive apps and plugins significantly impacting load times
  • High Time to First Byte (TTFB) indicating server-side rendering issues
  • Multiple animations and complex JavaScript delaying page loads
  • Poor Largest Contentful Paint (LCP) and Cumulative Layout Shift (CLS) metrics
  • Slideshow/carousel usage in hero banner area

Recommended Solutions:

  • Replace animated slideshows with static hero images to improve LCP
  • Remove or consolidate unnecessary apps
  • Use Shopify’s Theme Inspector Chrome extension to identify slow-rendering Liquid code
  • Defer or async-load heavy JavaScript
  • Inline critical CSS for above-the-fold content
  • Set fixed heights on sliders to prevent layout shifts
  • Simplify DOM structure and reduce nested containers
  • Consider lazy loading for non-critical images

Additional Notes:
Google PageSpeed Insights shows particularly poor mobile performance scores. Contributors suggest either manual code optimization or using automated tools like the Website Speedy app (14-day trial available). The discussion remains open with actionable recommendations provided but no confirmation of implementation.

Summarized with AI on October 28. AI used: claude-sonnet-4-5-20250929.

my store is trendyxmart.com, if someone can help , please help me. thank you.

Ella is one of the themes sold outside Shopify Theme store which are reasonably fast and functional.

Proper site speed audit take time. Proper recommendations would require access to the theme code and several trials.

However, generally:

  1. Having a simple hero banner on the homepage may help – instead of multiple product images, each of them requires time to download and render you would have a single image above the fold, which may be downloaded quite fast (obviously, some images are more complex and require bigger file, but some can be made less complex and less heavy). This may help with FCP and LCP metrics.

When you select content for above the fold area of your pages, avoid heavily animated sections or section which depend on complex Javascript, like, say slideshows. For example, your “Product by category” section is redrawn during the initial page load which leads to higher CLS.

  1. Your site has noticeably higher TTFB metric which actually impacts all other metrics. Something complex is going on server-side when Shopify renders your theme liquid. There is a Shopify Theme inspector Chrome extension which can show which Liquid code takes long to render.

For the same reason – pages with a lot of content will take longer to render and negatively affect TTFB.

  1. It often worth waiting a bit or/and browse your site so that Shopify renders your pages and puts them into server-side cache. Your pages should load faster when they are cached. This may be noticeable for sites with low traffic.

Hi @trendyxmart

I have double checked your website and let me share you some ideas which may explain why your store runs slowly:

  1. You added lots of plugins and apps on website, which slows down your page loading speed very much.

  1. Some texts and images are mixed together, which makes users feel hard to identify the difference and feel curious where to access.

  1. There exists several animations on your website, which delays the time of loading when users check your website. Reduce or minimize some unnecessary effects of images on your website will make your page load faster.

In short, a clean and well-organized store will get higher ranks and run faster meanwhile. You can go on optimizing store contents and I believe with your effort on it, your website will get better performance in the future. Cheers!

Hello @trendyxmart , I analyzed your website using Google PageSpeed Insights, and the results show very low performance scores — especially on mobile. This suggests significant issues with load time and visual stability.

Based on the results, here are a few steps you can take to improve the performance:

1. Avoid Using Slideshows as Hero Banners

If you’re using a slider, it’s heavier and often hurts LCP. If possible, consider using a single static image in the hero section instead of a slideshow..If you still want a slideshow, lazy load all non-active slides.

2. Minimize DOM Depth & Blockers

  • Avoid deeply nested containers around the hero image.
  • Try simplifying the structure of your homepage and moving heavy JavaScript**.** Move down heavy JS (like animations) to after the LCP has painted (defer or async)

3. Inline Critical CSS

Render your hero banner styles quickly by inlining critical CSS in . If your banner depends on external CSS, that can delay rendering.

You can extract above-the-fold styles and paste them directly into the tag in your theme.liquid.

4.Avoid Layout Shifts from Sliders/Carousels

Set fixed height or min-height for sliders and avoid using autoplay if it causes content movement..

hero-slider {

min-height: 600px;

overflow: hidden;

}

Alternate, if you’re not comfortable editing theme files manually, you can try the Website Speedy Shopify app if you prefer an automatic approach. It can handle smart image preloading and performance optimization. It comes with a 14-day free trial.