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English
$
USD
I will speed up your bigcommerce or prestashop store and fix core web vitals
Nasirul I
Level 2
5.0
5.0
About this gig
Is your BigCommerce or PrestaShop store losing customers due to slow load times? Every second of delay costs you sales. I specialize in both platforms fixing Core Web Vitals, boosting Google PageSpeed scores, and turning faster load times into real revenue growth.
What I will optimize:
- Full Google PageSpeed audit (mobile + desktop)
- Core Web Vitals fix LCP, CLS, INP for all key pages
- BigCommerce Stencil theme + Handlebars code audit
- PrestaShop template + module performance audit
- Product image optimization + WebP conversion
- JavaScript deferral + async loading setup
- CSS minification + unused code removal
- CDN configuration + browser caching setup
- Third-party app and script load cleanup
- GTmetrix Grade A report delivered
Why choose me?
7+ years in e-commerce speed optimization. I know BigCommerce Stencil and PrestaShop module architecture deeply I fix the root cause, not the symptoms.
You will get:
- Before/after Google PageSpeed report
- GTmetrix waterfall analysis
- 48-hour post-delivery support
Message me your store URL for a free speed audit before ordering.
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 Nasirul I
Nasirul I
website speed, design and customization expert
Level 2
- FromBangladesh
- Member sinceFeb 2020
- Avg. response time1 hour
- Last delivery1 month
Languages
English
Fast websites rank higher, convert better, and make more money. I make that happen.
7+ years of expert-level speed optimization, Core Web Vitals fixing, design, and customization across WordPress, Shopify, Wix, Squarespace, BigCommerce, and PrestaShop.
Google PageSpeed 90+ · GTmetrix Grade A · LCP CLS INP fixed
⚡ Speed Optimization
🎨 Design & Customization
🐛 Bug Fixing
✅ 7+ years experience
✅ Guaranteed results
✅ Reply within 1 hour
My Portfolio
FAQ
Can you optimize both BigCommerce and PrestaShop in one order?
This gig covers one store per order — either BigCommerce or PrestaShop. If you have both platforms, please place two separate orders. Each platform requires a distinct technical approach, so I give each store the full dedicated attention it deserves.
What makes BigCommerce and PrestaShop optimization different from WordPress?
BigCommerce uses the Stencil framework with Handlebars templates, and PrestaShop uses Smarty templating with a hook/override system. Both require platform-specific knowledge most generalist speed optimizers don't have. I work at the code level on both — not just surface-level plugin settings.
What PageSpeed score can I expect for my store?
BigCommerce stores typically reach 90–100 on desktop & 70–90 on mobile. PrestaShop stores on good hosting can reach 90–100 on desktop and 70–90 on mobile. Scores depend on theme complexity, number of modules, and hosting quality. I will give you a specific, honest target after reviewing your store.
My PrestaShop store is self-hosted. Does that affect results?
Yes — positively. Self-hosted PrestaShop gives full server access, which means I can configure GZIP/Brotli compression, server caching, and CDN settings that hosted platforms don't allow. Self-hosted stores often see the biggest improvements because there are no platform restrictions.
Will optimization affect my store's checkout, payments, or orders?
No. Speed optimization is entirely front-end focused — it only changes how your store loads, never how it processes orders or payments. I always back up the store before starting and test every page thoroughly before delivery. If anything looks wrong, I fix it immediately at no charge
Do you optimize PrestaShop module pages like category and product pages too?
Yes. The Standard and Premium packages include optimization of your homepage, category pages, and product pages — the three highest-traffic page types in any e-commerce store. Faster product pages directly reduce bounce rate and increase add-to-cart rates.
What if my score does not improve after delivery?
I offer a satisfaction guarantee on all packages. If you do not see a meaningful improvement — minimum 30% score increase — I will continue working at no extra charge until the target is reached, or provide a full refund. Before/after reports are delivered with every order so results are 100% transp
Reviews
6 reviews for this Gig
| (6) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
J jonathanlhtw
United Kingdom
This is the second time we have worked with Nasirul and once again he delivers on promises very quickly. I will continue to work with him on the more technical aspects of our website.
$50-$100
Price
2 days
Duration
Helpful?W westoftommy
United States
We had some hiccups at the beginning but he made sure that he delivered with quality work. Will use him again.
$50-$100
Price
5 days
Duration
Helpful?R ralfixings
United Kingdom
We worked with Nasirul to optimise the page speed of our eCommerce store. He quickly understood the brief, the required outcome, and goals set. In just a few short days our scores have massively improved! Now we - and our customers - can enjoy a fast loading eCommerce experience thanks to Nasirul's help.
$50-$100
Price
3 days
Duration
Helpful?M marissaorchid
United States
nasirultkg does what he says he's going to do! Excellent response as as well.
$50-$100
Price
2 days
Duration
Helpful?W watergalleryllc
United States
Excellent job and great communication. Thank you!
$100-$200
Price
2 days
Duration
Helpful?
Reviews
6 reviews for this Gig
| (6) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
J jonathanlhtw
United Kingdom
This is the second time we have worked with Nasirul and once again he delivers on promises very quickly. I will continue to work with him on the more technical aspects of our website.
$50-$100
Price
2 days
Duration
Helpful?W westoftommy
United States
We had some hiccups at the beginning but he made sure that he delivered with quality work. Will use him again.
$50-$100
Price
5 days
Duration
Helpful?R ralfixings
United Kingdom
We worked with Nasirul to optimise the page speed of our eCommerce store. He quickly understood the brief, the required outcome, and goals set. In just a few short days our scores have massively improved! Now we - and our customers - can enjoy a fast loading eCommerce experience thanks to Nasirul's help.
$50-$100
Price
3 days
Duration
Helpful?M marissaorchid
United States
nasirultkg does what he says he's going to do! Excellent response as as well.
$50-$100
Price
2 days
Duration
Helpful?W watergalleryllc
United States
Excellent job and great communication. Thank you!
$100-$200
Price
2 days
Duration
Helpful?
