Why Your Website Is Slow — and What It Costs You
A slow site isn't just annoying — it's customers leaving before they see your offer and lower Google rankings. We explain the most common causes and how to fix them.
You have 3 seconds. That's roughly how long a user waits before closing a slow-loading page in frustration. Every extra second means customers leaving and lower Google rankings — because speed is an official ranking factor. Let's look at why your website is slow and what to do about it.
What Core Web Vitals are
Google judges a page partly through Core Web Vitals — a set of user-experience metrics:
- LCP (Largest Contentful Paint) — how fast the main content appears.
- INP (Interaction to Next Paint) — how fast the page responds to clicks.
- CLS (Cumulative Layout Shift) — whether the layout jumps while loading.
Poor scores drag down both SEO and conversion.
The most common causes
- Unoptimized images — 4000px photos shown at 400px. The most common and easiest culprit to fix.
- Too many scripts — plugins, chats, pixels and analytics tools stacked in layers.
- Weak hosting — cheap shared servers choke under traffic.
- No caching — the page rebuilds everything on every visit.
- Heavy theme/builder — visual builders can add piles of needless code.
How to fix it
- Optimize images — modern formats (WebP/AVIF), correct dimensions, lazy-loading.
- Cut scripts — remove what you don't use; load the rest asynchronously.
- Enable caching and a CDN — content served from the nearest server.
- Choose solid hosting matched to your traffic.
- Consider a modern stack — at serious scale, a migration to Next.js fixes the problem at the source.
How to check your site
Enter your URL in Google's free PageSpeed Insights — you'll get Core Web Vitals scores and a list of concrete things to fix. A good starting point before commissioning optimization.
FAQ
How much does speed affect sales?
Studies consistently show even a one-second delay lowers conversion. A faster site means more completed purchases and enquiries.
Is a caching plugin enough?
Sometimes it helps, but it's a band-aid. If the problem is a heavy theme, images and scripts, you have to address the source.
Does a fast site really lift Google rankings?
Core Web Vitals are a confirmed ranking factor. Speed alone won't beat better content, but with similar competition it makes a difference.
Summary
A slow site costs you customers and rankings. Start with images and scripts, enable caching, sort out hosting, and at larger scale consider a modern stack. Measure first (PageSpeed Insights), then improve.
At Kajpa Studio we optimize speed and Core Web Vitals — or build from scratch on a stack that's fast by design. Let's check your site.