Episode 151

Growth by Sabir: Fix the Foundation Before You Scale With AI

Sabir Semerkant
Sabir Semerkant
Founder

In this episode we talked about:

  • Why Sabir starts with site performance before CRO, acquisition, or more traffic
  • Why a slow mobile experience can quietly destroy conversion and paid media efficiency
  • How RFM analysis can reveal whether you are actually acquiring customers or just buying orders
  • Why AI can make weak ecommerce systems worse if the fundamentals are not fixed first
  • How to identify when excess inventory is trapping cash that could be redeployed into stronger products
  • Why AI needs clear guardrails, evals, and defined success criteria
  • How multi-agent workflows can catch mistakes that a single model may miss
  • How Rapid 2X combines ecommerce fundamentals with AI-assisted execution

🎧 Listen now on Apple Podcasts, Spotify, or YouTube

Episode highlights:

04:03 How DTC Brands Are Using AI Agents To Drive Growth

‍05:26 Why Mobile Site Performance Comes Before ROAS Optimization

‍15:57 The Dangers Of Scaling With AI

‍17:57 Fixing Inventory, Cash Flow, And Brand Storytelling

‍22:26 Building Reliable AI Workflows With Context And Guardrails

‍25:35 How AI Is Changing The Future Of Ecommerce Agencies

Sabir’s bottom line: AI doesn’t fix a broken business. It scales it. If your mobile pages take longer than 2.5 seconds to become interactive, if 90% of your customers never buy twice, or if your cash is tied up in dead inventory, then vibe-coded features and more ad spend will only make those problems bigger and faster. Rapid 2X fixes the foundations in order: site performance, then customers, then product, then brand story. AI agents do the work under strict guardrails. Every task has defined success criteria, every page must pass a performance test before it goes live, and a second model audits the first for gaps and edge cases. That approach is how 200+ brands have averaged a 108% revenue increase in their first 12 weeks. His rule for all of it: fix the foundation before you scale.

FAQ

Sabir Semerkant has worked in ecommerce for 25 years, since before Shopify existed. He co-founded VaynerCommerce with Gary Vee and now runs Rapid 2X, a live coaching program that solves growth problems for ecommerce and DTC brands. Earlier in his career, he rebuilt vitaminshoppe.com after the business went bankrupt, growing it from roughly $12 million to $52 million in four and a half years. He later took Ashley Stewart's ecommerce channel from under $3 million to $30 million in two years after its bankruptcy, and has also worked with Perry Ellis and Tommy Hilfiger. He documented his approach in the Rapid 2X Protocol book, which listeners can get free at growthbysabir.com/book.
It's Sabir's warning about using AI before fixing the basics. If your site is slow and you start vibe coding new features, you scale the slowness. If most of your customers never come back and you pour more budget into AI-generated ad creative, you scale the waste. Scaling a problem only gives you more of the problem. His rule is to fix foundational issues first and scale second. He has seen where the alternative leads: brands that report strong Q4 numbers and then show up in bankruptcy filings in January.
Most brands come to Sabir asking for more traffic or better ROAS, but he says he can usually spot where a business is leaking revenue and ad dollars within seconds. The first leak is almost always speed. When pages aren't interactive quickly, shoppers bounce, conversion drops, and the money spent on Meta and Google ads buys less. Fixing performance first means the traffic you already pay for actually converts, which makes every later improvement, including ROAS, more effective.
Sabir's target is for a page to become interactive in 1.7 seconds, with 2.5 seconds as the upper limit he considers forgivable. Past that, he says, you are losing conversion. The speed that matters is mobile, not desktop: he estimates 80 to 90% of a US brand's shoppers are on iPhones, and brands selling globally need to optimize for Samsung and other Android devices too. A design that looks great on a designer's Mac desktop in a Zoom review is speaking to 10 to 20% of your traffic at best.
He gives AI coding agents like Claude Code and Codex a performance tool to test against. His preferred tool is GTmetrix, which has an MCP and an API. Every new theme page or product detail page has to pass a time-to-interactive test as part of its test cases. Changes are built in a staging theme on Shopify first and only go to production once they pass. If a page misses the target, it fails and doesn't go live. That stops vibe-coded landing pages and new features from quietly slowing the site back down.
RFM stands for recency, frequency, and monetary value: how recently customers bought, how often they buy, and how much they spend over 12 months and over their lifetime. Sabir says that on average about 90% of a Shopify store's customers buy only once, and only 6 to 12% buy more than once. That means most brands are buying transactions from Meta, not acquiring customers, and what they call customer acquisition cost is really order cost. His fix starts with segmented reactivation campaigns, such as buy one, get one 50% off, to learn which segments still care about the brand. Loyalty programs come later; installing one while 90% of buyers never return just makes it look like loyalty doesn't work.
Sabir applies the 80/20 rule: about 20% of inventory drives 80% of revenue, while the rest eats up warehouse space, cash, and time. Some slow stock can be revived with a proper product launch, but much of it should be cleared through a flash sale or an off-price channel. The goal is to free up cash for your top bestsellers. If $50,000 is sitting in a warehouse and your Meta ROAS is 3, that cash could become $150,000 in revenue from products that already sell. He also warns against copying competitors' product decisions, like launching 16 colors per SKU because a rival did.
Sabir uses a mix of models, including Claude Code, Codex, Opus, Sonnet, and GPT-6.1 Sol, because no single model catches everything. Every task goes through what he calls evals: a clear definition of the problem, what success looks like, and the exact tests the output has to pass. Once one model says a task is done, another audits it for gaps and edge cases, and the work goes through three rounds of fixes and re-audits. He also warns that AI, like people, does mental math, so numbers in an analysis need to be checked. With those guardrails, he says even non-technical founders can run several AI projects at once.
Sabir believes 80 to 90% of agencies will disappear because they were doing commodity work that AI with the right workflows can now handle. Several Rapid 2X founders have already replaced freelancers and agencies they no longer needed. The agencies he expects to thrive are specialists with deep experience, like VaynerMedia in branding, or teams that have run thousands of tests on platforms like Meta and Google. For founders, the bigger change is speed: a feedback loop with AI and good guardrails moves faster than waiting for a weekly agency call.
Toolbox listeners get an exclusive free trial of Noibu's AI agents for CRO, A/B testing, performance, accessibility, ROAS, and bug resolution. The agents start by auditing your store and ranking the biggest opportunities, from slow pages to broken journeys. Then they build each change, wait for your approval, ship it, and measure what it did. The trial runs until you have at least two changes live and measured. Get started at noibu.com/podcast-audit.

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