Turn a slow site into a faster, higher-converting asset for your business
What We're Measuring
| Metric | Category |
|---|---|
| Largest Contentful Paint (LCP) | Core Web Vital |
| Interaction to Next Paint (INP) | Core Web Vital |
| Cumulative Layout Shift (CLS) | Core Web Vital |
| Load time & page weight | Speed |
| Request count | Speed |
| Server response | Infrastructure |
Google Partner
Shopify Partner
Upwork Top Rated
HubSpot Gold Solutions Partner
Google Partner
Shopify Partner
Upwork Top Rated
At a Glance
What you get
A full performance audit, root-cause fixes across front-end and infrastructure, and verified before-and-after results
What we measure
Core Web Vitals (LCP, INP, CLS), load time, page weight, request count, and server response
Platforms we optimize
WordPress, HubSpot CMS, Shopify, Webflow, Wix, WooCommerce, headless and custom-built sites, and more.
How we work
Diagnose first, fix at the source, verify with data — never guesswork
Best for
Sites with slow load times, high bounce rates, weak mobile performance, or falling search rankings
Why It Matters
Why Speed Matters, and What You Gain
Site speed isn’t a technical nicety; it directly shapes revenue, rankings, and reputation. A slow site quietly costs you every day: visitors leave before they see your offer, search engines rank you below faster competitors, and fewer people complete the forms, sign-ups, and checkouts that drive your business. The good news is that this is fixable, and the upside is substantial. A faster site delivers:
More conversions from the same traffic
A quicker experience keeps more visitors moving through forms, sign-ups, and checkouts, so you get more from the audience you already have.
Stronger search visibility
Better Core Web Vitals and load times support higher rankings, bringing more of the right visitors to your site.
Lower bounce, longer engagement
Pages that load instantly hold attention, giving your message and offers the chance to land.
More efficient ad spend
Faster landing pages improve quality scores and conversion rates, so every click you pay for works harder.
A more credible brand
A quick, smooth site signals competence and builds the trust that turns first-time visitors into customers.
Our Website Performance Optimization Framework
Most optimization "checklists" are just a flat pile of tactics. Our optimization process follows four structured stages.
You diagnose before you fix; you fix the front-end and the infrastructure separately, and you keep it fast after we leave. Every technical lever the job requires falls into one of these four stages.
Diagnose: find what's actually slowing you down
Before making any changes, we measure your site's current performance using industry-standard tools such as Google PageSpeed Insights, Lighthouse, GTmetrix, and WebPageTest. This gives us a precise baseline to work from:
- A full Core Web Vitals assessment (Largest Contentful Paint, Interaction to Next Paint, and Cumulative Layout Shift).
- Load-time, page-weight, and request-count analysis to see exactly where the bulk and the delays live.
- Server response, network latency, and third-party script review to separate front-end problems from back-end ones.
This gives us a ranked list of real bottlenecks, not assumptions, so every fix that follows is targeted.
Optimize the front-end: what loads in the browser
This is where most visible speed gains happen. We make the page itself lighter and smarter about what it loads, and when:
- Code streamlining through minifying and combining HTML, CSS, and JavaScript while removing render-blocking resources so the page renders faster.
- Smart asset loading by deferring non-critical scripts and lazy-loading offscreen images and videos so above-the-fold content appears first.
- Modern image delivery through compressed images and next-generation formats such as WebP and AVIF, served at the correct dimensions for each device.
- Mobile-first tuning to ensure the experience is genuinely fast on mobile devices, not just on desktop.
Strengthen the infrastructure: what happens behind the page
Front-end fixes only go so far if the foundation is slow. We optimize the layers your visitors never see but always experience:
- Caching at every level, including browser caching, server-side caching, and object or opcode caching, so repeat requests load instantly.
- Database tuning through optimized queries, improved indexing, and removal of accumulated overhead that slows response times down.
- Delivery and protocol upgrades using a Content Delivery Network (CDN), modern delivery protocols, and Brotli/Gzip compression for faster transfer.
- Hosting and server review to identify when a faster or better-configured environment is the real unlock.
For sites that require it, we also apply advanced techniques such as server-side rendering, static generation, and progressive web app (PWA) capabilities, where they deliver meaningful performance improvements.
Sustain: keep it fast long after launch
Speed isn't a one-time event; new content, plugins, and tools all chip away at it over time. We make the gains durable:
- Performance monitoring so regressions are caught early, not after rankings slip.
- Re-optimization as your site evolves and as performance standards change.
- A clear path into our ongoing maintenance if you'd like the speed protected continuously.
Proven in the Real World
Performance only matters if it delivers measurable results. In one recent engagement, we took a high-traffic SaaS platform from a failing GTmetrix grade to a top-tier score, cutting its fully-loaded time from over six seconds to under three and roughly halving both its page weight and the number of requests the browser had to make. The result was a faster, steadier experience for users and stronger performance signals for search engines.
Over six seconds → under three
Roughly halved
Roughly halved
That outcome wasn’t luck or a single clever tweak. It came from the structured, system-level approach above, diagnosing the real bottlenecks first, then fixing them across both the front-end and the infrastructure. It’s the same method we bring to every site we optimize.
Why Choose Us
Why Arissa International for Website Performance Optimization
Years of experience
Clients served
Delivery hours
Completed projects
We fix causes, not symptoms
Anyone can run a speed test. We trace each slow metric back to its root — whether that's a bloated script, an unindexed query, or a slow host — and fix the actual problem.
Current standards, not outdated ones
We optimize against today's Core Web Vitals, including Interaction to Next Paint (INP), so your site is measured the way Google actually measures it now, not by retired metrics.
Proof, not promises
Every engagement ends with a transparent before-and-after report. You see exactly what changed and what it's worth, measured against the baseline we set on day one, not vague assurances.
Speed that serves the funnel
As a HubSpot Gold Solutions Partner, we optimize with conversion in mind because a faster site that turns more visitors into leads is the only kind of speed that pays for itself.
Proven since 2006
Arissa International has been providing website performance optimization services since 2006, with over two decades of experience tuning and re-engineering websites across high-traffic, data-intensive, and regulated environments worldwide.
The Funnel
How This Connects to Your Funnel
Speed is one of the first links in your conversion chain. A faster page means lower bounce, which means more visitors reaching your offer; healthier Core Web Vitals mean stronger rankings, which means more of the right visitors arriving in the first place; and quicker, smoother forms and checkouts mean more of them convert once they’re there. Because Arissa International optimizes the website and understands the CRM and marketing stack it feeds, we tune for the metric that actually matters to your business — not just a green score, but more qualified leads moving through the funnel.
Client Stories
Trusted by Businesses Worldwide
Helping 300+ clients build faster, more dependable websites since 2006.
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iPlantables
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JMPankey Partners — Senior Web Designer and Developer
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It has been great working with Arissa — he has been very reliable and his team are flexible and diligent. Many thanks Arissa!
Riley Media Ltd
LandLeaderiPlantables
Telmediq
Goldhill Group
ZS
Stampix
Process Pro Consulting
Caribbean Wellness Education
Slow website? Let's talk about fixing it.
Frequently Asked Questions
How Much Does Performance Optimization Cost?
Performance optimization is typically a project-based engagement with a clearly scoped deliverable. Cost varies with your site’s size, platform, and current performance, so we scope each engagement to your specific needs rather than quoting a flat figure. You pay for the work your site actually needs to get faster. Book a consultation and we’ll provide a tailored estimate based on your situation.
How Long Does It Take to Optimize a Website?
Will My Website Go Offline During Optimization?
No. We carry out optimization work in a staging environment first, test thoroughly, and only push the changes live once everything is verified. Your live site stays online and accessible to visitors throughout the process.
What's the Difference Between Website Performance Optimization and SEO?
Does Website Speed Affect My Conversion Rate?
How Do You Measure the Results of Optimization?
Can You Optimize a Large or High-Traffic Website?
Yes. We work on everything from small business sites to large, high-traffic platforms with complex functionality. Heavier sites often involve database tuning, CDN configuration, and server-level work, areas our in-house team handles regularly as part of website performance optimization engagements.
How Do I Get Started?
Book a free consultation. We’ll talk through your goals, look at what’s holding your site’s speed back, and explain how we’d approach fixing it, along with what the work would involve. From there, you decide how far to take it.