Images and media
Modern formats (WebP/AVIF), correct sizes, lazy loading and preloading of the hero image – on most pages images are the main content and the LCP element.
Website speed optimisation and Core Web Vitals
What is Core Web Vitals optimisation?
Core Web Vitals are Google’s three user-experience metrics: LCP measures how fast the main content loads, INP how quickly the page responds to interaction, and CLS how visually stable it is. Optimisation means bringing these metrics into Google’s “good” range.
A slow site loses the visitor before they see anything. I find what is slowing yours down and fix it measurably.
Laszlo Kulman · full-stack developer and SEO specialist · 15+ years of experience
In short
- Before-and-after measurement with the same method, so the result can be verified.
- Google’s “good” thresholds are the target: LCP up to 2.5 s, INP up to 200 ms, CLS up to 0.1.
- I work on WordPress, Next.js/React and webshop platforms.
- I do not promise a perfect 100: real-user experience is the yardstick, not a lab score.
What I speed up
The most common causes of slowness and what we can do about them
JavaScript and CSS
Reducing render-blocking, unused or oversized scripts and stylesheets, code splitting, and replacing or deferring heavy scripts.
Third-party scripts
Assessing the impact of analytics, chat, remarketing and embeds. What slows the site without delivering value goes; what stays is loaded smarter.
Server and caching
Server response (TTFB), page cache, database and plugin load, CDN and compression. On WordPress this is often where the biggest gain is.
Fonts and layout
Fine-tuning font loading and eliminating layout shifts (CLS) with fixed dimensions and reserved space.
Ongoing monitoring
After the fixes I set up monitoring so you notice if a later update or new plugin causes a regression.
How I work
Baseline measurement
Using real-user data (where available) and lab tests I record the current state of your key pages.
Finding the causes
I identify the actual causes of slowness instead of guessing. Often two or three things account for most of the problem.
Fixing
I start with the highest-impact changes, in a staging environment or after a backup, so nothing breaks.
Verification and handover
I measure again and you get the before-and-after comparison. Real-user data can take a few weeks to update, and I will tell you what to expect.
What does it cost?
The price depends on how many pages and which platform are involved. Prices are VAT-exempt (small-business exemption).
Quick fix
from 90,000 HUF (≈ €235)
The highest-impact fixes on a smaller WordPress or brochure site
Full optimisation
from 180,000 HUF (≈ €470)
Multiple page templates, a webshop or a custom-built site; code-level work and monitoring
Get a tailored quote
Describe your situation in a few lines and I will get back to you within one business day with a concrete proposal. The first conversation is free and non-binding.
Frequently asked questions
Why does website speed matter?
More visitors leave a slow page, and Core Web Vitals are among Google’s page-experience signals. The effect varies by site, but a fast site is certainly a better experience for visitors.
How long until I see results?
Lab measurements improve immediately. Google’s real-user data (CrUX) aggregates a 28-day period, so the improvement becomes fully visible in Search Console after a few weeks.
Can it be done on WordPress?
Yes. Often it is enough to review the plugin set, caching, images and theme. If the theme or page builder itself is the bottleneck, I will say so honestly and we discuss the options.
Could optimisation break my site?
I always take a backup before changing anything and work in staging where possible. After the changes I check the key functions such as forms and the cart.