Browse categories
Explore
Fiverr Pro
English
$
USD
I will do shopify speed optimization for mobile page speed
Mercier
About this gig
Is your e-commerce store losing valuable sales because it loads too slowly on smartphones?
Over 80% of online traffic happens on mobile devices. If your store takes more than 3 seconds to load, buyers will click away wasting your ad budget. I am Geneviève Mercier, a performance developer graduated from Sorbonne University, and I am here to help you speed up shopify stores safely!
I specialize in professional shopify speed optimization to maximize your conversion rates and secure your organic search positions. I deliver clean, manual optimization without breaking your design or app functionalities.
What this gig includes:
- Speed Optimization: Complete theme overhaul to achieve lightning-fast page speed.
- Resize Photos: Advanced image compression and native lazy-loading setup.
- Minification: Condensing theme Liquid, CSS, and JavaScript scripts for fast rendering.
- Browser Caching: Optimizing script delivery and removing broken app remnants.
- Database Optimization: Clearing old backend bloat and unused metafield data.
Improve your overall mobile speed and stop bleeding customers to a lagging layout.
Let's get your business loading instantly.
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know Mercier
Mercier
shopify Speed and Performance Specialist
- FromUnited Kingdom
- Member sinceJun 2026
- Avg. response time1 hour
Languages
English, French, Spanish, Urdu
Hi, I'm Geneviève Mercier, a Shopify performance specialist with a degree in Computer Science from McGill University. I help e-commerce store owners skyrocket their conversions by eliminating critical page load bottlenecks.
I specialize in mobile speed overhauls, advanced image compression, theme code cleanup (Liquid, JS, CSS), and Core Web Vitals optimization. No guesswork just pure data and visible performance gains that keep your buyers shopping and boost your SEO.
Ready to make your Shopify store blazing fast? Drop me a message for a free initial speed check!
FAQ
Will speeding up my store break my theme layout or functionality?
A: Not at all! I use completely safe, non-destructive optimization techniques. I always create a full duplicate backup of your active theme before rewriting any code, ensuring your store design and essential tracking apps stay 100% operational.
What tools do you use to test the shopify speed?
I measure performance using industry-standard tools like Google PageSpeed Insights and GTmetrix. My optimization strategy heavily targets your mobile speed metrics, as that is where the vast majority of your traffic and revenue comes from.
Do you need administrative login access to my Shopify store?
Yes, I require temporary access to work on your theme files. For security, you do not need to share your personal master password. You can simply send an official Shopify Collaborator Request or set up a limited staff account using my email address.
Can you guarantee a perfect 100/100 score on Google PageSpeed Insights?
No professional developer can honestly guarantee a perfect 100 score if your store relies on critical external apps like live chat, tracking pixels, or review widgets. However, I do guarantee a dramatic drop in real-world loading times and a massive boost to your performance score. If you need a cl
