Acceleration of website performance
78 USD I am looking for a specialist in technical optimization and website performance enhancement for mirson.ua on the OpenCart 3 platform for ongoing collaboration (contractor or consultant).
After transitioning from OpenCart 2.1 to OpenCart 3, the website gradually started to work slower, with periodic "freezes" of pages and spikes in server load.
The Lightning module is already installed — it has significantly improved speed, but this is not enough to achieve previous performance levels.
The goal is real acceleration of the website for users, not just improving Google PageSpeed or GTmetrix metrics.
What needs to be done:
Conduct an audit of the current state of the website:
code, template structure, modules, SQL queries, caching, image processing;
identify "bottlenecks" affecting speed.
Optimize:
frontend (HTML, JS, CSS, images, lazy-load, browser caching);
backend (database queries, page caching, modules, cron jobs).
Set up performance logging (at your discretion — for example, Lighthouse CI, GTmetrix, or other tools).
Conduct testing before and after optimization to capture the real effect.
If necessary — provide recommendations for the server specialist (PHP, MySQL, Redis, caching, etc.).
Expected results:
page loading speed on desktop and mobile devices significantly increases;
stable operation without "hangs" even under peak load;
noticeable improvement in UX without loss of functionality;
a brief report on completed work and recommendations for the future is provided.
Requirements for the specialist:
experience in optimizing large projects on OpenCart 3;
understanding of caching mechanisms (Lightning, PageCache, Redis, Varnish, Cloudflare);
basic knowledge of Linux server administration — will be a plus;
real cases (portfolio or examples of websites that have been accelerated).
Collaboration format:
first stage — audit and one-time optimization;
further long-term collaboration for technical support is possible.
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3 days67 USD
3 days67 USD
Good day, I have been developing and maintaining websites on OpenCart for more than 8 years. I am ready to complete your order. I will provide examples of my work in private. Write to me, and we will discuss!
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5 days89 USD
366 5 days89 USD
Hello
I have been working with OpenCart for over 10 years, developing stores, modules, integrations, modifications, optimizations.
Feel free to contact me.
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3 days89 USD
2341 73 0 3 days89 USD
Good day, I have extensive experience working in web. And a clear understanding of server operation, environment, website, and its resources. I can approach your task comprehensively, write to me privately for clarification of details.
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1 day89 USD
3556 86 1 1 1 day89 USD
☺️ Good day! I am ready to immediately take on the task and complete it today. I have experience with similar projects, so I know how to find an effective solution. You can review similar works in the feedback. I have paid modules 😊 I am waiting for your response! ✅
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2 days45 USD
5631 77 3 2 days45 USD
Good day!
I have been working with OpenCart for 15 years. I know its problems very well and how to deal with them.
I conducted a superficial audit of your site - I noticed a couple of critical issues that affect speed and security. Most likely, there will be issues with the server, the database, and the code.
I propose collaboration as follows - my fee is for conducting a full audit. There I will localize the problems in each section. If there are minor bugs (and there will be) - I will fix them immediately during the audit.
After completing the audit, I will see the full scope of work and we can discuss the cost and timeline for optimization.
I will be happy to continue our collaboration!
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10 days156 USD
605 2 0 10 days156 USD
We at RedHotTeam regularly accelerate large eCommerce platforms after core updates — and we have worked with OpenCart 3 more than once. But honestly: if you want stable speed, without “hangs” and peak loads — Shopify will be a significantly more effective solution than continuing to patch OpenCart.
Let me explain briefly 👇
🔹 The architecture of Shopify is built on CDN + Cloudflare-level caching, so there are no slowdowns even with thousands of visitors simultaneously.
🔹 The code and themes are not cluttered with modules, as in OpenCart — everything is done through Liquid/JSON templates, which render almost instantly.
🔹 Automatic scaling — Shopify distributes the load itself, there is no need for a separate Redis or Varnish.
🔹 Stability and security — server updates and caching are fully managed, you do not risk, as after the transition from OC2 → OC3.
🔹 Real speed for users, not just PageSpeed metrics — our Shopify projects maintain LCP < 2.5 s and CLS < 0.1.
… Check out our speed optimization cases:
https://redhotteam.com/en/portfolio/262821b8-3fef-45c0-8941-0ab0f7198dfd
— Shopify brand with 1000+ products, 90+ PageSpeed Mobile, Rebuy + Kaching Bundles.
https://redhotteam.com/en/portfolio/4dab900c-61b4-4c82-a0d8-75ba3b78b59e
— redesign and SEO optimization with a 28% improvement in conversions.
https://insideshop.com.ua/
— Shopify OS 2.0, PageSpeed 98/100, lazy-load, image caching, and custom CDN-layer.
https://trellify.com/en
— React + TypeScript SaaS, SEO optimization, and Vercel caching without Next.js.
If you are not yet ready for migration — we can conduct a full technical audit of OpenCart 3 (SQL, template, cache, modules, server), optimize the front and backend, add performance logging, and prepare a detailed report with recommendations for migration.
But if the goal is stable speed, lower server costs, and 0 technical headaches, Shopify will be your final solution.
When is it convenient to discuss the details and start with the audit?
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3 days67 USD
1618 18 1 1 3 days67 USD
Hello.
I can complete the task. I have extensive experience with Opencart and similar projects. If you want, you can check the reviews in my profile. The deadlines and costs are approximate - we need to discuss the details.
Write to me, I will do everything quickly and efficiently.
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15 days93 USD
24 7 1 15 days93 USD
Good day.
I have experience and a desire to work.
I will complete it within the agreed deadlines.
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5 days134 USD
151 5 days134 USD
Hello.
I am ready to work on website optimization — I will check the server, database, cache, and front end.
The goal is to reduce TTFB and speed up loading without losing functionality.
The deadline is 3–5 days, depending on access to the server.
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1 day45 USD
1328 35 1 1 day45 USD
Good day. I will perform a real optimization of the OpenCart database. You already have Lightning installed, which is the best caching module. If it didn't help, then it's only the database + code.
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2 days45 USD
840 18 2 1 2 days45 USD
I will conduct a full audit and optimization of the website **mirson.ua** on **OpenCart 3** to improve speed and stability. I will check the code, template, modules, database, caching, optimize the frontend and backend, set up performance logging, and conduct testing before and after. After optimization, the website will work faster, without freezes, with improved UX. Ongoing technical support is possible on a regular basis.
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3 days178 USD
601 9 0 3 days178 USD
Good day. I know OpenCart very well. I will perform speed optimization.
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1 day111 USD
6538 229 4 7 1 day111 USD
Hello
Are you considering the transition to OpenCart 3?
It will work faster.
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