Performance Optimization

Frontend Performance Switzerland
Load faster. Rank better.

Core Web Vitals in the red? Slow loading times cost you rankings and customers. I optimize your frontend for maximum speed.

Call now Free Analysis

100+ Performance Optimizations • Avg. 60% faster • Core Web Vitals Expert

The Problem

Why slow websites fail

Worse Rankings

Google penalizes slow pages. Core Web Vitals are an official ranking factor since 2021.

Users bounce

53% of mobile users leave a page if it takes longer than 3 seconds to load.

Fewer Conversions

Every second of delay costs 7% conversion. At CHF 100,000 revenue that is CHF 7,000.

Mobile Disaster

On smartphones performance is even more critical. Slow connections amplify the problem.

My Services

Systematic Performance Optimization

From analysis to implementation – I make your website measurably faster.

Vincent Kilchherr - Performance Optimierung Schweiz

Performance Specialist with Developer Expertise

I understand not only the metrics but also the code behind them. This enables optimizations that really work – not just cosmetic improvements.

My approach: measure, prioritize, optimize, verify. With real data, not guesswork.

  • Core Web Vitals (LCP, FID, CLS)
  • JavaScript & CSS Optimization
  • Asset Optimization & CDN
Core Web Vitals

Optimize LCP, FID, CLS

The three Core Web Vitals determine your Google ranking. I analyze each one individually and optimize specifically.

  • LCP < 2.5s – Largest Contentful Paint
  • FID < 100ms – First Input Delay
  • CLS < 0.1 – Cumulative Layout Shift
  • INP optimized – Interaction to Next Paint
Core Web Vitals Optimierung
Code Optimization

Slim down JavaScript & CSS

Bloated bundles are the most common performance killer. I identify unnecessary code and optimize the loading sequence.

  • Code Splitting – Only load what is needed
  • Tree Shaking – Remove unused code
  • Critical CSS – Above-the-fold immediately
  • Async/Defer – Avoid render-blocking
JavaScript CSS Optimierung
Asset Optimization

Images, Fonts & more

Images often make up 50%+ of page size. With modern formats and clever loading I save megabytes.

  • WebP/AVIF – Modern image formats
  • Lazy Loading – Load images on demand
  • Font Optimization – WOFF2, Subsetting, Preload
  • CDN Integration – Fast globally
Asset Optimierung
Why me

Developer expertise instead of tool dependency

Real Code Changes

I optimize at the code level – not just with plugins that themselves cost performance.

Measurable Results

Before/after comparison with PageSpeed Insights, WebPageTest and Real User Metrics.

Focus on Impact

I prioritize by impact. The biggest wins first, not everything at once.

No Risks

All changes are tested. Your page works better after optimization, not worse.

The Process

How I optimize your performance

1

Analysis

Comprehensive performance analysis with Lighthouse, WebPageTest and Real User Monitoring.

2

Prioritization

Identification of the biggest bottlenecks and creation of an optimization plan.

3

Optimization

Implementation of optimizations – code, assets, server configuration.

4

Verification

Measurement of improvements and documentation of results.

"
Our PageSpeed Score was at 35. After Vincent's optimization we are at 94. The page now loads in under 2 seconds – before it was over 8.
Daniel K.
Marketing Manager, E-Commerce Basel
FAQ

Frequently Asked Questions about Performance Optimization

It depends on the scope – from focused optimizations to comprehensive performance overhauls. You receive a binding quote after the analysis.

The technical improvements are immediately measurable after deployment. However Google takes 2-4 weeks to reflect the new values in Search Console.

All common ones: WordPress, TYPO3, Shopware, WooCommerce, custom solutions. The principles are the same everywhere, the implementation varies.

Not necessarily, but sometimes hosting is the bottleneck. I analyze this and recommend alternatives if needed – but only if it is really necessary.

With the right approach, no. I test all changes thoroughly and work with staging environments. You will not get any nasty surprises.

I document all changes and give you guidelines. Optionally I also offer ongoing performance monitoring to detect regressions early.

Free Performance Analysis?

I will show you where your biggest optimization potentials lie.

+41 61 539 12 25 Send message