Audit site speed and performance

Audit site speed and performance in Shopify — with the four heights of help laid out: do it now, make it easier for the next person to accept, work out the right move when you are stuck, and learn the pattern so it stops coming back.

4prompt heights
Open it in the interactive atlas →

The four heights

The same task, four distances: today's deadline, the next reviewer, the stuck moment, the pattern.

Execute — do the immediate task

+
Page speed scores are slipping and bounce on category pages is up. Run a focused performance audit…
Page speed scores are slipping and bounce on category pages is up. Run a focused performance audit that loads the storefront on desktop and a mid-tier Android phone over 4G. Identify the single largest JavaScript bundle, any unoptimized hero images over 200kb, and the three slowest third-party scripts. Produce a list of fixes ranked by expected impact: compress or lazy-load images, defer noncritical JS, remove or replace the slowest third-party include. Deliver the list and a quick test plan for after changes.

Improve — make it easier to accept

+
Before I hand a speed audit to the devs, make the issues easy to prioritize. Surface the estimated…
Before I hand a speed audit to the devs, make the issues easy to prioritize. Surface the estimated seconds saved per fix, flag anything affecting first contentful paint, and highlight third-party scripts that block rendering. Group fixes into quick wins under 2 hours and engineering tasks over a day. Call out any recommended image sizes and which app or plugin is inserting large scripts or styles.

Decide — diagnose the stuck moment

+
After installing a theme update, Lighthouse dropped and conversion dipped. I don't know whether the…

Lighthouse score dropped 18 points after the last theme update.

After installing a theme update, Lighthouse dropped and conversion dipped. I don't know whether the theme or a recently added app caused the slowdown. I'm the store owner; marketing wants the new design live but cart abandonment is rising. Which diagnostics should I run first to attribute the slowdown to theme code versus third-party apps, and what immediate rollback or mitigation will buy us time?

Become — change the pattern

+
Every month a design tweak or new app triggers a performance crisis and we scramble to diagnose. I…

We repeatedly waste dev time chasing slowdowns after every update.

Every month a design tweak or new app triggers a performance crisis and we scramble to diagnose. I manage the store and budget limited dev hours. Which recurring habit should I change so performance regressions stop arriving as emergencies, and what pre-deployment checklist item will prevent unnecessary third-party script inclusion?

Next to this one

Other ecommerce work people do in Shopify.

Every task here came from the work, not from a feature list — which is why the prompts name what you want done and never the button that does it. The tool changes; the work does not.
Copyright © LLOS.ai · 2026 — original pedagogy, voice, and design — all rights reserved.

The rest of the map

Same library, five ways in.