Web Performance Optimization & Core Web Vitals Services

Web performance and Core Web Vitals, handled by senior engineers

If your site is slow, you feel it everywhere: SEO stalls, paid traffic gets more expensive, and conversion rates slide for reasons nobody can quite prove. BYBOWU steps in as a specialist performance team that treats speed as a revenue problem, not just a technical score.

Based in Phoenix, AZ and working with B2B, ecommerce, and product teams across the US and worldwide, we audit, fix, and stabilize your Core Web Vitals on real devices and real networks so you can scale marketing and product without worrying that every new release will slow things down again.

When this service is the right fit

You do not need a performance lecture, you need numbers to move. Typical situations we are called into:

• Search Console shows "Needs improvement" or "Poor" for LCP, INP, or CLS on key templates, and organic growth has flattened.
• Landing pages look great in Figma but feel sluggish on real phones, especially for users outside North America.
• Engineering has performance "on the roadmap" but stakeholders are not seeing measurable change quarter to quarter.
• Every new marketing script, plugin, or widget seems to shave a bit off your conversion rate.
• Leadership wants a clear story: what gets fixed, when it ships, and what impact to expect on leads or revenue.

If any of this sounds familiar, you are at the stage where a focused Core Web Vitals and web performance engagement usually pays for itself quickly.

How we improve Core Web Vitals without breaking your site

We come in as a senior partner, not as a plugin installer. The work is structured, visible, and tightly connected to your KPIs.

1. Performance audit and prioritization

• Analyze LCP, INP, CLS, and TTFB using Search Console, Chrome UX Report, and any existing real user monitoring.
• Run Lighthouse and PageSpeed Insights across your key templates, devices, and geographies.
• Review hosting, CDN, CMS or framework setup (Next.js, WordPress, Laravel, custom stacks), plugins, and third-party scripts.
• Deliver a ranked backlog: quick wins, medium-effort items, and structural fixes, mapped to business impact.

2. Fix the foundations: server, CDN, and caching

• Design a CDN and caching strategy: safe HTML caching where possible, aggressive static asset caching, edge rules for critical routes.
• Improve TTFB with connection reuse, HTTP/2 or HTTP/3, compression, and leaner middleware or plugins.
• Introduce versioned assets and long-lived cache headers so returning visitors load almost instantly.

3. Make above-the-fold content feel instant

This is where we move the needle on LCP and visual stability.

• Implement a robust image strategy with AVIF/WebP, responsive srcset/sizes, and proper hero art direction.
• Reserve layout space for images, ads, and embeds to prevent layout shifts and keep CLS in the "Good" range.
• Prioritize key assets with preload, preconnect, and priority hints so primary content appears quickly.

4. Reduce JavaScript and CSS overhead

• Audit bundles, remove unused code, and split by route or feature so users only download what they need.
• Lazy-load non-critical components and defer or conditionally load third-party and marketing scripts.
• Inline and optimize critical CSS, remove dead styles, and eliminate unnecessary render-blocking assets.
• Improve INP by moving heavy work off the main thread and reducing expensive re-renders or DOM operations.

5. Framework-specific tuning

• Next.js: tune SSR, SSG, or ISR, use modern routing patterns where appropriate, configure next/image correctly, and reduce client-side JavaScript.
• WordPress: implement full-page and object caching (for example Redis), simplify heavy themes, remove or replace slow plugins, and optimize database queries.
• Laravel and custom stacks: cache routes and responses, optimize ORM usage, move heavy work to queues, and streamline middleware chains.

6. Monitoring, guardrails, and knowledge transfer

• Set up real user monitoring dashboards for LCP, INP, and CLS by device, geography, and template.
• Add performance budgets and CI checks so regressions are caught before they reach production.
• Document practical guidelines for content, design, and engineering so the site stays fast release after release.

What you actually get from this engagement

No 60-page PDF that sits in a shared drive. You get a focused plan, implemented changes, and clear before/after data.

• Core Web Vitals and performance audit, with a prioritized backlog and effort estimates.
• Implementation by BYBOWU, implementation-ready tickets for your team, or a blend of both.
• Before/after reporting: PageSpeed snapshots, Search Console comparisons, and change logs per release.
• Monitoring and alerting setup so your team sees issues early instead of hearing about them from customers.
• Playbooks for marketing, design, and engineering that make "performance safe" the default way of working.

Most clients start with a fixed-scope audit and quick wins sprint, then keep us on a light retainer for quarterly check-ins and higher-impact improvements.

How working together usually works

1. Intro call (30–45 minutes). We look at your main pages, stack, markets, and KPIs. You get an honest view of what is realistic and where we would start.
2. Audit and plan. We run the full Core Web Vitals and performance audit and present a prioritized backlog with effort, timelines, and recommended phases.
3. Implementation sprints. We work in small, reviewable batches so you see steady improvements in lab and field data without disrupting campaigns.
4. Measure and communicate impact. We compare Core Web Vitals, organic and paid performance, and key funnel metrics before and after, and package this for leadership.
5. Ongoing protection (optional). Monthly or quarterly reviews, CI checks, and periodic improvements so speed remains a strength as your product and content grow.

If you already have a trusted web development partner, we can plug in alongside them and focus purely on performance and Core Web Vitals.

Ready to turn speed into a competitive advantage?

If a few hundred milliseconds could meaningfully affect your revenue or lead volume, performance is not a "nice to have" anymore. BYBOWU combines senior engineering, clear communication, and a pragmatic process so your site feels fast, stays fast, and supports the growth targets you are aiming for.

Contact us with your stack, 5–10 representative URLs, and main KPIs. We will get back to you within one business day with an initial view of what we would tackle first and how we would phase the work.

Want to explore more before reaching out? See our broader web development services, related SEO and digital marketing services, or browse real projects in our portfolio.