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10/1/2026

Online store speed – where to start with optimization

A slow store means fewer orders and weaker visibility in Google. We show which elements most often slow a store down and how to improve them.

Online store speed – where to start with optimization

Loading speed has a direct impact on whether a customer completes their purchase. Google also takes it into account, assessing pages through metrics such as Core Web Vitals. The good news: many performance problems can be solved without rebuilding the whole store.

What slows a store down most often?

  • Heavy images – photos in excessive resolutions and older formats instead of lighter ones such as WebP.
  • No caching – pages generated from scratch on every visit.
  • Too many modules and plugins – each one adds scripts and database queries.
  • An unoptimised database – unnecessary data and missing indexes slow down search and product listings.
  • Weak hosting – a server that cannot keep up with higher traffic.

How we work

We start by measuring: we check which pages and elements take the longest to load. Then we optimise images, caching and the database, tidy up modules and – if necessary – recommend a different server. After each change we measure the effect, so it is clear what actually improved the result.

Find out more on the Optimization and UX / Performance pages.

#wydajność#Core Web Vitals#SEO