Speeding up a Salla or Zid store: what you can actually improve and what the platform owns
How to measure your Salla or Zid store speed and improve what you actually own: images, apps and external scripts, and a supported theme, with honest platform limits.
Direct answer: Measure your store's speed first through PageSpeed Insights and the Core Web Vitals report in Search Console before changing anything, then focus on what you actually own: image size before upload, the number of apps and external scripts, and a modern supported theme. Hosting and the theme's core code belong to the platform and no new app will change them, and remember page experience is one supporting factor among many, not a ranking switch.
Speed matters, but it is not everything
Google states that its core ranking systems reward content that provides a good page experience, while also always seeking to show the most relevant content even if its page experience is sub-par. Practically: a slow page with useful content can outrank a fast empty page, but when content is comparable, experience becomes a real edge.
The reference metrics are Core Web Vitals: Largest Contentful Paint within 2.5 seconds, Interaction to Next Paint within 200 milliseconds, and Cumulative Layout Shift of 0.1 or less, measured at the 75th percentile of page loads with mobile and desktop separated.
Measure before you fix
Open PageSpeed Insights, paste your store URL, and record two different numbers: field data from the Chrome User Experience Report (real visitors) and lab data (an instant simulation). Field data is the reference when available; the lab score is a diagnostic that varies between runs and does not equal your visitors' experience.
Review the Core Web Vitals report in Search Console when you have it; it groups similar pages and tells you which groups need work on mobile and desktop. Test at least three page types - home, a category and a product - because each behaves differently.
What you own first: images
Images are the biggest lever a merchant controls on hosted platforms. Compress and resize images before upload to match their real display size, and do not upload raw camera dimensions and leave the store to fight them. Modern formats like WebP are lighter than old JPEGs at the same quality.
Look at your home page critically: large slider images and embedded videos above the fold are among the heaviest causes of a slow LCP. One clear hero image beats five slides nobody waits for.
What you own second: apps and external scripts
Every app you install from the app market and every pixel or chat widget you add ships JavaScript into your customer's browser, and the accumulation of these additions is one of the most common causes of slow stores and weak interaction responsiveness.
Hold a regular review: remove apps you do not actually use, audit tags in Google Tag Manager (ad pixels, session recorders, chat widgets) and delete what belongs to finished campaigns. After each removal, re-measure the same page in PageSpeed Insights and log the difference with its date.
What you own third: the theme and page structure
Theme choice is a speed decision before it is a design decision. Zid's help center explains that themes not built for the enhanced storefront miss new storefront features and speed improvements, and it shows an alert when your theme is no longer supported; if you see that alert, upgrading to a supported theme is among the highest-return moves available to you.
Salla themes also vary in weight and structure, so review Salla's themes journal before choosing. Regardless of platform: more home page sections, sliders and animated elements mean more loading cost; a focused home page sells better than a tiring gallery.
What the platform owns and you cannot change
Hosting, the content delivery network, the theme's core code and the checkout page are owned by the platform. Do not spend effort trying to control them, and do not believe anyone promising to hack past them with another app.
If you improved what you own and field data stays poor, raise it with platform support together with your dated measurements; a documented, numbers-based request works better than a general complaint.
Common myths about store speed
Chasing a lab score of 100 is unhelpful obsession; the score is a diagnostic, not a goal, and part of what the report lists is outside your control on a hosted platform.
Speed does not compensate for weak content; Google is explicit that the most relevant content wins even with sub-par experience. And deleting every app before measuring can remove tools that serve sales while the real problem was images all along.
A monthly measurement sheet for your store
Keep a simple tracking page: date, URL, mobile field numbers (LCP, INP, CLS) when available, lab score, the change you made, and one note. Review the Search Console report monthly, compare groups before and after your work, and keep the records so you know what actually made the difference.
When to ask for a specialist
Bring in a specialist when causes intertwine or you need a considered theme decision. The professional deliverable to expect: a documented baseline measured with Google's tools, a fix list ranked by impact within what you actually own, and before-and-after records on the same pages, without promises of a specific score or a guaranteed ranking.
Frequently asked questions
Will speeding up my store raise my Google ranking directly?
Page experience is one supporting factor among many signals, and Google states the most relevant content wins even with sub-par experience. Improve speed for your visitors first and to strengthen your position when content is comparable, not as a content substitute.
What is a good Core Web Vitals score?
LCP within 2.5 seconds, INP within 200 milliseconds, CLS of 0.1 or less, measured at the 75th percentile of real visitor loads with mobile separated. The PageSpeed lab score is a diagnostic, not the goal itself.
My store is still slow after image optimization and removing extra apps. What now?
Confirm you are reading field data, not lab data, and review the theme: an old unsupported theme can be the cause. Whatever remains after that belongs to the platform; raise it with support with your documented measurements.
Should I delete all apps to speed up the store?
No. Remove only what you do not use and measure the effect of each removal on the same page. A useful app that serves sales may be worth its cost; the decision starts from measurement, not guessing.
Official sources
Sources reviewed November 2, 2026. Suggested checks are not a client result or an audit of your account.
Clear answers before you start.
Will speeding up my store raise my Google ranking directly?
Page experience is one supporting factor among many signals, and Google states the most relevant content wins even with sub-par experience. Improve speed for your visitors first and to strengthen your position when content is comparable, not as a content substitute.
What is a good Core Web Vitals score?
LCP within 2.5 seconds, INP within 200 milliseconds, CLS of 0.1 or less, measured at the 75th percentile of real visitor loads with mobile separated. The PageSpeed lab score is a diagnostic, not the goal itself.
My store is still slow after image optimization and removing extra apps. What now?
Confirm you are reading field data, not lab data, and review the theme: an old unsupported theme can be the cause. Whatever remains after that belongs to the platform; raise it with support with your documented measurements.
Should I delete all apps to speed up the store?
No. Remove only what you do not use and measure the effect of each removal on the same page. A useful app that serves sales may be worth its cost; the decision starts from measurement, not guessing.