Why is my ecommerce store speed drastically decreasing?

Technical Q&A

Topic summary

Ecommerce store speed on Shopify has dropped sharply after minor menu tweaks (underline removed, one column split into two) and adding a custom app page. The owner is unsure what could have halved performance and shared a screenshot indicating the decline.

Suggested diagnostics and optimizations:

  • Run GTmetrix or PageSpeed Insights to pinpoint issues; optimize images, scripts, and media. Minimize installed apps/plugins, consider a CDN, and upgrade hosting if needed.
  • Fix console errors; reduce JavaScript and CSS payloads; defer third-party JS; optimize code; improve CLS (Cumulative Layout Shift—visual stability); optimize images.

Provided benchmarks from one reply: homepage targets around Mobile ~40 and Desktop 65+.

Latest updates: The store URL (https://clairamor.com/) was shared. Shopify’s speed score reportedly fell to 28 for two days. The owner is considering a third-party optimizer that claims it can raise the score to 95+ due to fair pricing.

Action items and status: Another participant requested the third-party URL. No root cause identified yet; the thread remains open and awaiting further details to analyze the site and validate the optimization approach.

Summarized with AI on February 1. AI used: gpt-5.
2

Hello @diamors ,

We are OneCommerce - an eCommerce Solution Platform.

Seems like you did few important steps to optimize your page speed. It will be better if you can share us your store URL so that we can have a closer look at your issue. Meanwhile, we have some suggestions that may help you troubleshoot the issue.

  • Use a performance optimization tool such as GTmetrix or PageSpeed Insights to analyze your site and identify areas for improvement.
  • Optimize images, scripts, and other media on your site.
  • Minimize the number of apps and plugins you have installed.
  • Consider using a content delivery network (CDN) to help distribute your content and improve page load times.
  • Upgrade your hosting plan if necessary.

Contact us if you need any further support via julia@onecommerce.io . And it’d be encourage so much if you can hit the Like button for this reply, it means a lot to us.

Looking forward for your reply,

OneCommerce team.

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