Capabilities Web Design & Development E-Commerce & Marketplace Mobile Application LLM Agents & AI Integration RAG Systems & Automation AI Character & Video Branding & Identity Performance Engineering SEO / AEO Social Media & Content Outsourcing & Support Projects Project Local Project Competitors Project Analytics SOON Project RD 2027 Process Contact Start a project
§ 05 · Capabilities

Performance
Engineering

1 second of load time = 7% conversion drop. We've taken sites from 4.6s to 0.9s LCP under live traffic, no rollback. Performance is not an afterthought — it's the foundation.

4.6→0.9s LCP achieved live
€2.1M GMV attributed
<24h First response
The reality
The problem
Performance is treated as an afterthought — until it costs you.
  • Slow sites discovered on Black Friday, not in development
  • Core Web Vitals issues that suppress ranking and conversion
  • Performance budgets set once and never enforced
  • Third-party scripts that no one audits until they break everything
  • No monitoring — you find out when users complain
The Panicworkz way
Performance baked in from day one.
  • Performance budgets enforced from the first commit, not the last sprint
  • Core Web Vitals as a primary metric, not a checkbox
  • Third-party script auditing and governance built into the process
  • Real-user monitoring so you know before your users do
  • We've done live migrations — we know how to move fast without breaking things
What's included

What we actually do

01 Performance Audit +

Full Lighthouse audit, Core Web Vitals analysis, waterfall inspection, bundle analysis. You get a prioritized fix list.

LighthouseWebPageTestChrome DevToolsBundle analyzer
02 Core Web Vitals +

LCP, CLS, INP optimization. Critical CSS, image optimization, font loading, layout stability.

LCPCLSINPCritical CSS
03 JavaScript Optimization +

Bundle analysis, code splitting, tree shaking, lazy loading. Half the JS, same features.

WebpackViteCode splittingTree shaking
04 Edge & CDN +

Edge deployment, CDN configuration, caching strategy, regional performance optimization.

CloudflareVercel EdgeCDNCache strategy
05 Third-party Audit +

Tag manager audit, script governance, privacy-safe loading strategies. Remove what doesn't earn its weight.

Tag ManagerScript auditPrivacyGovernance
06 Real-User Monitoring +

RUM setup, performance dashboards, alerting. You see performance in production, not just in audits.

RUMMonitoringAlertingDashboards
Why Panicworkz

Why we're
different

01
We've done it live

Migrating performance under live traffic is high-risk. We've done it on Black Friday eve. No rollback.

02
Revenue-connected

We tie performance improvements to conversion rates and revenue — not just Lighthouse scores.

03
Full-stack advantage

Because we build sites, we can implement fixes at the source — not just recommend them.

04
Budget-enforced

We set and enforce performance budgets throughout development — not just at the end.

05
Monitored always

We set up RUM and alerting so performance regressions are caught before users notice.

06
No estimates, real fixes

We don't tell you what could improve performance. We fix it and show you the numbers.

How it works

From brief to
live

/01 · Audit
Baseline & Analysis

Full performance audit — lab data, field data, waterfall, bundle. Prioritized fix list with impact estimates.

/02 · Plan
Roadmap

Quick wins first, then structural improvements. Timeline matched to your release schedule.

/03 · Fix
Implementation

Performance fixes implemented, tested on staging, validated before production deployment.

/04 · Monitor
Track & Maintain

RUM setup, alerting, monthly performance review. Regressions caught before they cost you.

Ready to make
your site fast
for real?

Start a project → See our work
Also in our stack

Other capabilities

Web Design & Development E-Commerce & Marketplace Mobile Application AI Integration & LLM Agents RAG Systems & Automation AI Character & Video Branding & Identity SEO / AEO Social Media & Content Outsourcing & Support